diff --git a/quickstep/res/layout/transient_taskbar.xml b/quickstep/res/layout/transient_taskbar.xml
index bf4b811..7a6d16a 100644
--- a/quickstep/res/layout/transient_taskbar.xml
+++ b/quickstep/res/layout/transient_taskbar.xml
@@ -44,7 +44,6 @@
         android:layout_height="@dimen/bubblebar_size"
         android:layout_gravity="bottom|end"
         android:layout_marginEnd="@dimen/transient_taskbar_bottom_margin"
-        android:layout_marginBottom="@dimen/transient_taskbar_bottom_margin"
         android:paddingEnd="@dimen/taskbar_icon_spacing"
         android:paddingStart="@dimen/taskbar_icon_spacing"
         android:visibility="gone"
diff --git a/quickstep/src/com/android/launcher3/proxy/ProxyActivityStarter.java b/quickstep/src/com/android/launcher3/proxy/ProxyActivityStarter.java
index 4d7cc85..6d90b035 100644
--- a/quickstep/src/com/android/launcher3/proxy/ProxyActivityStarter.java
+++ b/quickstep/src/com/android/launcher3/proxy/ProxyActivityStarter.java
@@ -24,6 +24,8 @@
 import android.os.Bundle;
 import android.util.Log;
 
+import com.android.launcher3.util.StartActivityParams;
+
 public class ProxyActivityStarter extends Activity {
 
     private static final String TAG = "ProxyActivityStarter";
diff --git a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
index 10ae97b..39c8da0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/NavbarButtonsViewController.java
@@ -88,6 +88,7 @@
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory;
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory.NavButtonLayoutter;
 import com.android.launcher3.util.DimensionUtils;
+import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.MultiPropertyFactory.MultiProperty;
 import com.android.launcher3.util.MultiValueAlpha;
 import com.android.launcher3.util.TouchController;
@@ -197,6 +198,7 @@
             this::onComputeInsetsForSeparateWindow;
     private final RecentsHitboxExtender mHitboxExtender = new RecentsHitboxExtender();
     private ImageView mRecentsButton;
+    private DisplayController mDisplayController;
 
     public NavbarButtonsViewController(TaskbarActivityContext context, FrameLayout navButtonsView) {
         mContext = context;
@@ -226,6 +228,8 @@
                         TaskbarManager.isPhoneMode(deviceProfile));
         mNavButtonsView.getLayoutParams().height = p.y;
 
+        mDisplayController = DisplayController.INSTANCE.get(mContext);
+
         mIsImeRenderingNavButtons =
                 InputMethodService.canImeRenderGesturalNavButtons() && mContext.imeDrawsImeNavBar();
         if (!mIsImeRenderingNavButtons) {
@@ -727,14 +731,10 @@
         boolean isInKidsMode = mContext.isNavBarKidsModeActive();
 
         if (TaskbarManager.FLAG_HIDE_NAVBAR_WINDOW) {
-            if (!isThreeButtonNav) {
-                return;
-            }
-
             NavButtonLayoutter navButtonLayoutter =
                     NavButtonLayoutFactory.Companion.getUiLayoutter(
                             dp, mNavButtonsView, res, isInKidsMode, isInSetup, isThreeButtonNav,
-                            TaskbarManager.isPhoneMode(dp));
+                            TaskbarManager.isPhoneMode(dp), mDisplayController.getInfo().rotation);
             navButtonLayoutter.layoutButtons(dp, isContextualButtonShowing());
             return;
         }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 43aceec..baaddad 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -55,6 +55,7 @@
 import android.view.Display;
 import android.view.Gravity;
 import android.view.RoundedCorner;
+import android.view.Surface;
 import android.view.View;
 import android.view.WindowManager;
 import android.widget.FrameLayout;
@@ -295,8 +296,7 @@
 
     public void init(@NonNull TaskbarSharedState sharedState) {
         mLastRequestedNonFullscreenHeight = getDefaultTaskbarWindowHeight();
-        mWindowLayoutParams =
-                createDefaultWindowLayoutParams(TYPE_NAVIGATION_BAR_PANEL, WINDOW_TITLE);
+        mWindowLayoutParams = createAllWindowParams();
 
         // Initialize controllers after all are constructed.
         mControllers.init(sharedState);
@@ -360,11 +360,6 @@
      * @param title The window title to pass to the created WindowManager.LayoutParams.
      */
     public WindowManager.LayoutParams createDefaultWindowLayoutParams(int type, String title) {
-        DeviceProfile deviceProfile = getDeviceProfile();
-        // Taskbar is on the logical bottom of the screen
-        boolean isVerticalBarLayout = TaskbarManager.isPhoneButtonNavMode(this) &&
-                deviceProfile.isLandscape;
-
         int windowFlags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                 | WindowManager.LayoutParams.FLAG_SLIPPERY
                 | WindowManager.LayoutParams.FLAG_SPLIT_TOUCH;
@@ -373,17 +368,14 @@
                     | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
         }
         WindowManager.LayoutParams windowLayoutParams = new WindowManager.LayoutParams(
-                isVerticalBarLayout ? mLastRequestedNonFullscreenHeight : MATCH_PARENT,
-                isVerticalBarLayout ? MATCH_PARENT : mLastRequestedNonFullscreenHeight,
+                MATCH_PARENT,
+                mLastRequestedNonFullscreenHeight,
                 type,
                 windowFlags,
                 PixelFormat.TRANSLUCENT);
         windowLayoutParams.setTitle(title);
         windowLayoutParams.packageName = getPackageName();
-        windowLayoutParams.gravity = !isVerticalBarLayout ?
-                Gravity.BOTTOM :
-                Gravity.END; // TODO(b/230394142): seascape
-
+        windowLayoutParams.gravity = Gravity.BOTTOM;
         windowLayoutParams.setFitInsetsTypes(0);
         windowLayoutParams.receiveInsetsIgnoringZOrder = true;
         windowLayoutParams.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
@@ -394,6 +386,64 @@
                 TaskbarManager.isPhoneMode(mDeviceProfile)
                         ? R.string.taskbar_phone_a11y_title
                         : R.string.taskbar_a11y_title);
+
+        return windowLayoutParams;
+    }
+
+    /**
+     * Creates {@link WindowManager.LayoutParams} for Taskbar, and also sets LP.paramsForRotation
+     * for taskbar showing as navigation bar
+     */
+    private WindowManager.LayoutParams createAllWindowParams() {
+        WindowManager.LayoutParams windowLayoutParams =
+                createDefaultWindowLayoutParams(TYPE_NAVIGATION_BAR_PANEL,
+                        TaskbarActivityContext.WINDOW_TITLE);
+        boolean isPhoneNavMode = TaskbarManager.isPhoneButtonNavMode(this);
+        if (!isPhoneNavMode) {
+            return windowLayoutParams;
+        }
+
+        // Provide WM layout params for all rotations to cache, see NavigationBar#getBarLayoutParams
+        int width = WindowManager.LayoutParams.MATCH_PARENT;
+        int height = WindowManager.LayoutParams.MATCH_PARENT;
+        int gravity = Gravity.BOTTOM;
+        windowLayoutParams.paramsForRotation = new WindowManager.LayoutParams[4];
+        for (int rot = Surface.ROTATION_0; rot <= Surface.ROTATION_270; rot++) {
+            WindowManager.LayoutParams lp =
+                    createDefaultWindowLayoutParams(TYPE_NAVIGATION_BAR_PANEL,
+                            TaskbarActivityContext.WINDOW_TITLE);
+            switch (rot) {
+                case Surface.ROTATION_0, Surface.ROTATION_180 -> {
+                    // Defaults are fine
+                    width = WindowManager.LayoutParams.MATCH_PARENT;
+                    height = mLastRequestedNonFullscreenHeight;
+                    gravity = Gravity.BOTTOM;
+                }
+                case Surface.ROTATION_90 -> {
+                    width = mLastRequestedNonFullscreenHeight;
+                    height = WindowManager.LayoutParams.MATCH_PARENT;
+                    gravity = Gravity.END;
+                }
+                case Surface.ROTATION_270 -> {
+                    width = mLastRequestedNonFullscreenHeight;
+                    height = WindowManager.LayoutParams.MATCH_PARENT;
+                    gravity = Gravity.START;
+                }
+
+            }
+            lp.width = width;
+            lp.height = height;
+            lp.gravity = gravity;
+            windowLayoutParams.paramsForRotation[rot] = lp;
+        }
+
+        // Override current layout params
+        WindowManager.LayoutParams currentParams =
+                windowLayoutParams.paramsForRotation[getDisplay().getRotation()];
+        windowLayoutParams.width = currentParams.width;
+        windowLayoutParams.height = currentParams.height;
+        windowLayoutParams.gravity = currentParams.gravity;
+
         return windowLayoutParams;
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
index 07cd8ff..68ea475 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarInsetsController.kt
@@ -19,6 +19,7 @@
 import android.graphics.Region
 import android.os.Binder
 import android.os.IBinder
+import android.view.Gravity
 import android.view.InsetsFrameProvider
 import android.view.InsetsFrameProvider.SOURCE_DISPLAY
 import android.view.InsetsSource.FLAG_INSETS_ROUNDED_CORNER
@@ -109,23 +110,21 @@
                         .setSource(SOURCE_DISPLAY)
                 )
         } else {
-            windowLayoutParams.providedInsets =
-                arrayOf(
-                    InsetsFrameProvider(insetsOwner, 0, navigationBars())
-                        .setFlags(
-                            insetsRoundedCornerFlag,
-                            (FLAG_SUPPRESS_SCRIM or FLAG_INSETS_ROUNDED_CORNER)
-                        ),
-                    InsetsFrameProvider(insetsOwner, 0, tappableElement()),
-                    InsetsFrameProvider(insetsOwner, 0, mandatorySystemGestures())
-                )
+            windowLayoutParams.providedInsets = getButtonNavInsets(insetsRoundedCornerFlag)
+            if (windowLayoutParams.paramsForRotation != null) {
+                for (layoutParams in windowLayoutParams.paramsForRotation) {
+                    layoutParams.providedInsets = getButtonNavInsets(insetsRoundedCornerFlag)
+                }
+            }
         }
 
         val taskbarTouchableHeight = controllers.taskbarStashController.touchableHeight
         val bubblesTouchableHeight =
-            if (controllers.bubbleControllers.isPresent)
+            if (controllers.bubbleControllers.isPresent) {
                 controllers.bubbleControllers.get().bubbleStashController.touchableHeight
-            else 0
+            } else {
+                0
+            }
         val touchableHeight = Math.max(taskbarTouchableHeight, bubblesTouchableHeight)
 
         if (
@@ -148,75 +147,99 @@
                 windowLayoutParams.height
             )
         }
-        val contentHeight = controllers.taskbarStashController.contentHeightToReportToApps
-        val res = context.resources
+
+        val gravity = windowLayoutParams.gravity
         for (provider in windowLayoutParams.providedInsets) {
-            if (provider.type == navigationBars() || provider.type == mandatorySystemGestures()) {
-                provider.insetsSize = getInsetsByNavMode(contentHeight)
-            } else if (provider.type == tappableElement()) {
-                provider.insetsSize = getInsetsByNavMode(tappableHeight)
-            } else if (provider.type == systemGestures() && provider.index == INDEX_LEFT) {
-                provider.insetsSize =
-                    Insets.of(
-                        gestureNavSettingsObserver.getLeftSensitivityForCallingUser(res),
-                        0,
-                        0,
-                        0
-                    )
-            } else if (provider.type == systemGestures() && provider.index == INDEX_RIGHT) {
-                provider.insetsSize =
-                    Insets.of(
-                        0,
-                        0,
-                        gestureNavSettingsObserver.getRightSensitivityForCallingUser(res),
-                        0
-                    )
-            }
+            setProviderInsets(provider, gravity)
         }
 
-        val imeInsetsSize = getInsetsByNavMode(taskbarHeightForIme)
-        val insetsSizeOverride =
-            arrayOf(
-                InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
-            )
-        // Use 0 tappableElement insets for the VoiceInteractionWindow when gesture nav is enabled.
-        val visInsetsSizeForGestureNavTappableElement = getInsetsByNavMode(0)
-        val insetsSizeOverrideForGestureNavTappableElement =
-            arrayOf(
-                InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
-                InsetsFrameProvider.InsetsSizeOverride(
-                    TYPE_VOICE_INTERACTION,
-                    visInsetsSizeForGestureNavTappableElement
-                ),
-            )
-        for (provider in windowLayoutParams.providedInsets) {
-            if (context.isGestureNav && provider.type == tappableElement()) {
-                provider.insetsSizeOverrides = insetsSizeOverrideForGestureNavTappableElement
-            } else if (provider.type != systemGestures()) {
-                // We only override insets at the bottom of the screen
-                provider.insetsSizeOverrides = insetsSizeOverride
+        if (windowLayoutParams.paramsForRotation != null) {
+            // Add insets for navbar rotated params
+            for (layoutParams in windowLayoutParams.paramsForRotation) {
+                for (provider in layoutParams.providedInsets) {
+                    setProviderInsets(provider, layoutParams.gravity)
+                }
             }
         }
 
         context.notifyUpdateLayoutParams()
     }
 
+    private fun getButtonNavInsets(insetsRoundedCornerFlag: Int): Array<InsetsFrameProvider> {
+        return arrayOf(
+                    InsetsFrameProvider(insetsOwner, 0, navigationBars())
+                        .setFlags(
+                            insetsRoundedCornerFlag,
+                            (FLAG_SUPPRESS_SCRIM or FLAG_INSETS_ROUNDED_CORNER)
+                        ),
+                    InsetsFrameProvider(insetsOwner, 0, tappableElement()),
+                    InsetsFrameProvider(insetsOwner, 0, mandatorySystemGestures()))
+    }
+
+    private fun setProviderInsets(provider: InsetsFrameProvider, gravity: Int) {
+        val contentHeight = controllers.taskbarStashController.contentHeightToReportToApps
+        val tappableHeight = controllers.taskbarStashController.tappableHeightToReportToApps
+        val res = context.resources
+        if (provider.type == navigationBars() || provider.type == mandatorySystemGestures()) {
+            provider.insetsSize = getInsetsByNavMode(contentHeight, gravity)
+        } else if (provider.type == tappableElement()) {
+            provider.insetsSize = getInsetsByNavMode(tappableHeight, gravity)
+        } else if (provider.type == systemGestures() && provider.index == INDEX_LEFT) {
+            provider.insetsSize =
+                    Insets.of(
+                            gestureNavSettingsObserver.getLeftSensitivityForCallingUser(res),
+                            0,
+                            0,
+                            0
+                    )
+        } else if (provider.type == systemGestures() && provider.index == INDEX_RIGHT) {
+            provider.insetsSize =
+                    Insets.of(
+                            0,
+                            0,
+                            gestureNavSettingsObserver.getRightSensitivityForCallingUser(res),
+                            0
+                    )
+        }
+
+        val imeInsetsSize = getInsetsByNavMode(taskbarHeightForIme, gravity)
+        val insetsSizeOverride =
+                arrayOf(
+                        InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
+                )
+        // Use 0 tappableElement insets for the VoiceInteractionWindow when gesture nav is enabled.
+        val visInsetsSizeForGestureNavTappableElement = getInsetsByNavMode(0, gravity)
+        val insetsSizeOverrideForGestureNavTappableElement =
+                arrayOf(
+                        InsetsFrameProvider.InsetsSizeOverride(TYPE_INPUT_METHOD, imeInsetsSize),
+                        InsetsFrameProvider.InsetsSizeOverride(
+                                TYPE_VOICE_INTERACTION,
+                                visInsetsSizeForGestureNavTappableElement
+                        ),
+                )
+        if (context.isGestureNav && provider.type == tappableElement()) {
+            provider.insetsSizeOverrides = insetsSizeOverrideForGestureNavTappableElement
+        } else if (provider.type != systemGestures()) {
+            // We only override insets at the bottom of the screen
+            provider.insetsSizeOverrides = insetsSizeOverride
+        }
+    }
+
     /**
-     * @return [Insets] where the [bottomInset] is either used as a bottom inset or
-     *
-     * ```
-     *         right/left inset if using 3 button nav
-     * ```
+     * @return [Insets] where the [inset] is either used as a bottom inset or
+     * right/left inset if using 3 button nav
      */
-    private fun getInsetsByNavMode(bottomInset: Int): Insets {
-        val devicePortrait = !context.deviceProfile.isLandscape
-        if (!TaskbarManager.isPhoneButtonNavMode(context) || devicePortrait) {
+    private fun getInsetsByNavMode(inset: Int, gravity: Int): Insets {
+        if ((gravity and Gravity.BOTTOM) != 0) {
             // Taskbar or portrait phone mode
-            return Insets.of(0, 0, 0, bottomInset)
+            return Insets.of(0, 0, 0, inset)
         }
 
         // TODO(b/230394142): seascape
-        return Insets.of(0, 0, bottomInset, 0)
+        val isSeascape = (gravity and Gravity.START) != 0
+        val leftInset = if (isSeascape) inset else 0
+        val rightInset = if (isSeascape) 0 else inset
+        return Insets.of(leftInset , 0, rightInset, 0)
     }
 
     /**
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
index 0b822fb..4ad3d5a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarLauncherStateController.java
@@ -202,6 +202,11 @@
                 public void onStateTransitionComplete(LauncherState finalState) {
                     mLauncherState = finalState;
                     updateStateForFlag(FLAG_LAUNCHER_IN_STATE_TRANSITION, false);
+                    // TODO(b/279514548) Cleans up bad state that can occur when user interacts with
+                    // taskbar on top of transparent activity.
+                    if (finalState == LauncherState.NORMAL && mLauncher.isResumed()) {
+                        updateStateForFlag(FLAG_RESUMED, true);
+                    }
                     applyState();
                     boolean disallowLongClick = finalState == LauncherState.OVERVIEW_SPLIT_SELECT;
                     com.android.launcher3.taskbar.Utilities.setOverviewDragState(
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
index 8f3898f..1809d40 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarManager.java
@@ -206,7 +206,14 @@
                         destroyExistingTaskbar();
                     } else {
                         if (dp != null && isTaskbarPresent(dp)) {
-                            mTaskbarActivityContext.updateDeviceProfile(dp);
+                            if (FLAG_HIDE_NAVBAR_WINDOW) {
+                                // Re-initialize for screen size change? Should this be done
+                                // by looking at screen-size change flag in configDiff in the
+                                // block above?
+                                recreateTaskbar();
+                            } else {
+                                mTaskbarActivityContext.updateDeviceProfile(dp);
+                            }
                         }
                         mTaskbarActivityContext.onConfigurationChanged(configDiff);
                     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java
index 5eec726..512b77a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarPopupController.java
@@ -177,7 +177,6 @@
                     systemShortcuts);
         }
 
-        icon.clearAccessibilityFocus();
         container.addOnAttachStateChangeListener(
                 new PopupLiveUpdateHandler<BaseTaskbarContext>(context, container) {
                     @Override
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
index 29f4f38..1b45404 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarViewController.java
@@ -25,6 +25,7 @@
 import static com.android.launcher3.anim.AnimatedFloat.VALUE;
 import static com.android.launcher3.anim.AnimatorListeners.forEndCallback;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASKBAR_ALLAPPS_BUTTON_TAP;
+import static com.android.launcher3.taskbar.TaskbarManager.isPhoneButtonNavMode;
 import static com.android.launcher3.taskbar.TaskbarManager.isPhoneMode;
 import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 import static com.android.launcher3.util.MultiTranslateDelegate.INDEX_TASKBAR_ALIGNMENT_ANIM;
@@ -171,6 +172,13 @@
                 .getTaskbarNavButtonTranslationYForInAppDisplay();
 
         mActivity.addOnDeviceProfileChangeListener(mDeviceProfileChangeListener);
+
+        if (TaskbarManager.FLAG_HIDE_NAVBAR_WINDOW) {
+            // This gets modified in NavbarButtonsViewController, but the initial value it reads
+            // may be incorrect since it's state gets destroyed on taskbar recreate, so reset here
+            mTaskbarIconAlpha.get(ALPHA_INDEX_SMALL_SCREEN)
+                    .animateToValue(isPhoneButtonNavMode(mActivity) ? 0 : 1).start();
+        }
     }
 
     /**
@@ -444,8 +452,13 @@
      * Creates an animation for aligning the Taskbar icons with the provided Launcher device profile
      */
     private AnimatorPlaybackController createIconAlignmentController(DeviceProfile launcherDp) {
-        mOnControllerPreCreateCallback.run();
         PendingAnimation setter = new PendingAnimation(100);
+        if (TaskbarManager.isPhoneButtonNavMode(mActivity)) {
+            // No animation for icons in small-screen
+            return setter.createPlaybackController();
+        }
+
+        mOnControllerPreCreateCallback.run();
         DeviceProfile taskbarDp = mActivity.getDeviceProfile();
         Rect hotseatPadding = launcherDp.getHotseatLayoutPadding(mActivity);
         float scaleUp = ((float) launcherDp.iconSizePx) / taskbarDp.taskbarIconSize;
diff --git a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
index 02d9d95..cf0b36a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/allapps/TaskbarAllAppsController.java
@@ -112,9 +112,6 @@
     /** Updates the current search suggestions. */
     public void setZeroStateSearchSuggestions(List<ItemInfo> zeroStateSearchSuggestions) {
         mZeroStateSearchSuggestions = zeroStateSearchSuggestions;
-        if (mSearchSessionController != null) {
-            mSearchSessionController.setZeroStateSearchSuggestions(zeroStateSearchSuggestions);
-        }
     }
 
     /** Updates the current notification dots. */
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
index 6b5c962..b2d5940 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
@@ -184,6 +184,8 @@
         bubbleControllers.runAfterInit(() -> {
             mBubbleBarViewController.setHiddenForBubbles(!BUBBLE_BAR_ENABLED);
             mBubbleStashedHandleViewController.setHiddenForBubbles(!BUBBLE_BAR_ENABLED);
+            mBubbleBarViewController.setUpdateSelectedBubbleAfterCollapse(
+                    key -> setSelectedBubble(mBubbles.get(key)));
         });
     }
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
index 58c67e3..563ba02 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
@@ -32,6 +32,7 @@
 import com.android.launcher3.views.ActivityContext;
 
 import java.util.List;
+import java.util.function.Consumer;
 
 /**
  * The view that holds all the bubble views. Modifying this view should happen through
@@ -71,7 +72,11 @@
 
     private final BubbleBarBackground mBubbleBarBackground;
 
-    // The current bounds of all the bubble bar.
+    /**
+     * The current bounds of all the bubble bar. Note that these bounds may not account for
+     * translation. The bounds should be retrieved using {@link #getBubbleBarBounds()} which
+     * updates the bounds and accounts for translation.
+     */
     private final Rect mBubbleBarBounds = new Rect();
     // The amount the bubbles overlap when they are stacked in the bubble bar
     private final float mIconOverlapAmount;
@@ -101,6 +106,9 @@
     @Nullable
     private Runnable mReorderRunnable;
 
+    @Nullable
+    private Consumer<String> mUpdateSelectedBubbleAfterCollapse;
+
     public BubbleBarView(Context context) {
         this(context, null);
     }
@@ -144,6 +152,13 @@
                     mReorderRunnable.run();
                     mReorderRunnable = null;
                 }
+                // If the bar was just collapsed and the overflow was the last bubble that was
+                // selected, set the first bubble as selected.
+                if (!mIsBarExpanded && mUpdateSelectedBubbleAfterCollapse != null
+                        && mSelectedBubbleView.getBubble() instanceof BubbleBarOverflow) {
+                    BubbleView firstBubble = (BubbleView) getChildAt(0);
+                    mUpdateSelectedBubbleAfterCollapse.accept(firstBubble.getBubble().getKey());
+                }
                 updateWidth();
             }
 
@@ -175,9 +190,11 @@
     }
 
     /**
-     * Returns the bounds of the bubble bar.
+     * Updates the bounds with translation that may have been applied and returns the result.
      */
     public Rect getBubbleBarBounds() {
+        mBubbleBarBounds.top = getTop() + (int) getTranslationY();
+        mBubbleBarBounds.bottom = getBottom() + (int) getTranslationY();
         return mBubbleBarBounds;
     }
 
@@ -293,6 +310,11 @@
         }
     }
 
+    public void setUpdateSelectedBubbleAfterCollapse(
+            Consumer<String> updateSelectedBubbleAfterCollapse) {
+        mUpdateSelectedBubbleAfterCollapse = updateSelectedBubbleAfterCollapse;
+    }
+
     /**
      * Sets which bubble view should be shown as selected.
      */
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
index 52c144e..4e9f88a 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
@@ -36,6 +36,7 @@
 
 import java.util.List;
 import java.util.Objects;
+import java.util.function.Consumer;
 
 /**
  * Controller for {@link BubbleBarView}. Manages the visibility of the bubble bar as well as
@@ -184,6 +185,12 @@
         }
     }
 
+    /** Sets a callback that updates the selected bubble after the bubble bar collapses. */
+    public void setUpdateSelectedBubbleAfterCollapse(
+            Consumer<String> updateSelectedBubbleAfterCollapse) {
+        mBarView.setUpdateSelectedBubbleAfterCollapse(updateSelectedBubbleAfterCollapse);
+    }
+
     /**
      * Sets whether the bubble bar should be hidden due to SysUI state (e.g. on lockscreen).
      */
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java
index b3c7d41..5177d93 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleStashController.java
@@ -15,6 +15,8 @@
  */
 package com.android.launcher3.taskbar.bubbles;
 
+import static java.lang.Math.abs;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
@@ -125,6 +127,16 @@
             mBubblesShowingOnHome = onHome;
             if (mBubblesShowingOnHome) {
                 showBubbleBar(/* expanded= */ false);
+                // When transitioning from app to home the stash animator may already have been
+                // created, so we need to animate the bubble bar here to align with hotseat.
+                if (!mIsStashed) {
+                    mIconTranslationYForStash.animateToValue(getBubbleBarTranslationYForHotseat())
+                            .start();
+                }
+                // If the bubble bar is already unstashed, the taskbar touchable region won't be
+                // updated correctly, so force an update here.
+                mControllers.runAfterInit(() ->
+                        mTaskbarInsetsController.onTaskbarOrBubblebarWindowHeightOrInsetsChanged());
             } else if (!mBarViewController.isExpanded()) {
                 stashBubbleBar();
             }
@@ -143,6 +155,11 @@
             mBubblesShowingOnOverview = onOverview;
             if (!mBubblesShowingOnOverview && !mBarViewController.isExpanded()) {
                 stashBubbleBar();
+            } else {
+                // When transitioning to overview the stash animator may already have been
+                // created, so we need to animate the bubble bar here to align with taskbar.
+                mIconTranslationYForStash.animateToValue(getBubbleBarTranslationYForTaskbar())
+                        .start();
             }
         }
     }
@@ -234,8 +251,11 @@
             secondHalfDurationScale = 0.75f;
 
             // If we're on home, adjust the translation so the bubble bar aligns with hotseat.
-            final float hotseatTransY = mActivity.getDeviceProfile().getTaskbarOffsetY();
-            final float translationY = mBubblesShowingOnHome ? hotseatTransY : 0;
+            // Otherwise we're either showing in an app or in overview. In either case adjust it so
+            // the bubble bar aligns with the taskbar.
+            final float translationY = mBubblesShowingOnHome ? getBubbleBarTranslationYForHotseat()
+                    : getBubbleBarTranslationYForTaskbar();
+
             fullLengthAnimatorSet.playTogether(
                     mIconScaleForStash.animateToValue(1),
                     mIconTranslationYForStash.animateToValue(translationY));
@@ -265,6 +285,7 @@
                     if (isStashed) {
                         mBarViewController.setExpanded(false);
                     }
+                    mTaskbarInsetsController.onTaskbarOrBubblebarWindowHeightOrInsetsChanged();
                 });
             }
         });
@@ -277,4 +298,15 @@
             mTaskbarInsetsController.onTaskbarOrBubblebarWindowHeightOrInsetsChanged();
         });
     }
+
+    private float getBubbleBarTranslationYForTaskbar() {
+        return -mActivity.getDeviceProfile().taskbarBottomMargin;
+    }
+
+    private float getBubbleBarTranslationYForHotseat() {
+        final float hotseatBottomSpace = mActivity.getDeviceProfile().hotseatBarBottomSpacePx;
+        final float hotseatCellHeight = mActivity.getDeviceProfile().hotseatCellHeightPx;
+        return -hotseatBottomSpace - hotseatCellHeight + mUnstashedHeight - abs(
+                hotseatCellHeight - mUnstashedHeight) / 2;
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/navbutton/AbstractNavButtonLayoutter.kt b/quickstep/src/com/android/launcher3/taskbar/navbutton/AbstractNavButtonLayoutter.kt
index 27a4988..b682081 100644
--- a/quickstep/src/com/android/launcher3/taskbar/navbutton/AbstractNavButtonLayoutter.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/navbutton/AbstractNavButtonLayoutter.kt
@@ -17,10 +17,12 @@
 package com.android.launcher3.taskbar.navbutton
 
 import android.content.res.Resources
+import android.graphics.drawable.RotateDrawable
 import android.view.ViewGroup
 import android.widget.ImageView
 import android.widget.LinearLayout
 import com.android.launcher3.R
+import com.android.launcher3.Utilities
 import com.android.launcher3.taskbar.navbutton.NavButtonLayoutFactory.NavButtonLayoutter
 
 /**
@@ -40,7 +42,18 @@
     protected val endContextualContainer: ViewGroup,
     protected val startContextualContainer: ViewGroup
 ) : NavButtonLayoutter {
-    protected val homeButton: ImageView = navButtonContainer.findViewById(R.id.home)
-    protected val recentsButton: ImageView = navButtonContainer.findViewById(R.id.recent_apps)
-    protected val backButton: ImageView = navButtonContainer.findViewById(R.id.back)
+    protected val homeButton: ImageView? = navButtonContainer.findViewById(R.id.home)
+    protected val recentsButton: ImageView? = navButtonContainer.findViewById(R.id.recent_apps)
+    protected val backButton: ImageView? = navButtonContainer.findViewById(R.id.back)
+
+    init {
+        // setup back button drawable
+        if (backButton != null) {
+            val rotateDrawable = RotateDrawable()
+            rotateDrawable.drawable = backButton.context?.getDrawable(R.drawable.ic_sysbar_back)
+            rotateDrawable.fromDegrees = 0f
+            rotateDrawable.toDegrees = if (Utilities.isRtl(backButton.resources)) 90f else -90f
+            backButton.setImageDrawable(rotateDrawable)
+        }
+    }
 }
diff --git a/quickstep/src/com/android/launcher3/taskbar/navbutton/KidsNavLayoutter.kt b/quickstep/src/com/android/launcher3/taskbar/navbutton/KidsNavLayoutter.kt
index 468a1a7..4a53c0c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/navbutton/KidsNavLayoutter.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/navbutton/KidsNavLayoutter.kt
@@ -51,10 +51,10 @@
         val paddingTop = (buttonHeight - iconSize) / 2
 
         // Update icons
-        backButton.setImageDrawable(backButton.context.getDrawable(DRAWABLE_SYSBAR_BACK_KIDS))
+        backButton!!.setImageDrawable(backButton.context.getDrawable(DRAWABLE_SYSBAR_BACK_KIDS))
         backButton.scaleType = ImageView.ScaleType.FIT_CENTER
         backButton.setPadding(paddingLeft, paddingTop, paddingLeft, paddingTop)
-        homeButton.setImageDrawable(homeButton.getContext().getDrawable(DRAWABLE_SYSBAR_HOME_KIDS))
+        homeButton!!.setImageDrawable(homeButton.context.getDrawable(DRAWABLE_SYSBAR_HOME_KIDS))
         homeButton.scaleType = ImageView.ScaleType.FIT_CENTER
         homeButton.setPadding(paddingLeft, paddingTop, paddingLeft, paddingTop)
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactory.kt b/quickstep/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactory.kt
index 0668da9..7db2320 100644
--- a/quickstep/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactory.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactory.kt
@@ -17,6 +17,8 @@
 package com.android.launcher3.taskbar.navbutton
 
 import android.content.res.Resources
+import android.view.Surface.ROTATION_90
+import android.view.Surface.Rotation
 import android.view.ViewGroup
 import android.widget.FrameLayout
 import android.widget.LinearLayout
@@ -56,7 +58,8 @@
             isKidsMode: Boolean,
             isInSetup: Boolean,
             isThreeButtonNav: Boolean,
-            phoneMode: Boolean
+            phoneMode: Boolean,
+            @Rotation surfaceRotation: Int
         ): NavButtonLayoutter {
             val navButtonContainer = navButtonsView.findViewById<LinearLayout>(ID_END_NAV_BUTTONS)
             val endContextualContainer =
@@ -73,13 +76,20 @@
                             endContextualContainer,
                             startContextualContainer
                         )
-                    } else {
+                    } else if (surfaceRotation == ROTATION_90) {
                         PhoneLandscapeNavLayoutter(
                             resources,
                             navButtonContainer,
                             endContextualContainer,
                             startContextualContainer
                         )
+                    } else {
+                        PhoneSeascapeNavLayoutter(
+                                resources,
+                                navButtonContainer,
+                                endContextualContainer,
+                                startContextualContainer
+                        )
                     }
                 }
                 deviceProfile.isTaskbarPresent -> {
diff --git a/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneLandscapeNavLayoutter.kt b/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneLandscapeNavLayoutter.kt
index 201895f..92715a7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneLandscapeNavLayoutter.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneLandscapeNavLayoutter.kt
@@ -27,7 +27,7 @@
 import com.android.launcher3.taskbar.TaskbarManager
 import com.android.launcher3.util.DimensionUtils
 
-class PhoneLandscapeNavLayoutter(
+open class PhoneLandscapeNavLayoutter(
     resources: Resources,
     navBarContainer: LinearLayout,
     endContextualContainer: ViewGroup,
@@ -44,8 +44,8 @@
         // TODO(b/230395757): Polish pending, this is just to make it usable
         val navContainerParams = navButtonContainer.layoutParams as FrameLayout.LayoutParams
         val endStartMargins = resources.getDimensionPixelSize(R.dimen.taskbar_nav_buttons_size)
-        val taskbarDimensions =
-            DimensionUtils.getTaskbarPhoneDimensions(dp, resources, TaskbarManager.isPhoneMode(dp))
+        val taskbarDimensions = DimensionUtils.getTaskbarPhoneDimensions(dp, resources,
+                TaskbarManager.isPhoneMode(dp))
         navButtonContainer.removeAllViews()
         navButtonContainer.orientation = LinearLayout.VERTICAL
 
diff --git a/quickstep/src/com/android/launcher3/taskbar/navbutton/PhonePortraitNavLayoutter.kt b/quickstep/src/com/android/launcher3/taskbar/navbutton/PhonePortraitNavLayoutter.kt
index f7ac974..7f7fda7 100644
--- a/quickstep/src/com/android/launcher3/taskbar/navbutton/PhonePortraitNavLayoutter.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/navbutton/PhonePortraitNavLayoutter.kt
@@ -43,7 +43,8 @@
         // TODO(b/230395757): Polish pending, this is just to make it usable
         val navContainerParams = navButtonContainer.layoutParams as FrameLayout.LayoutParams
         val taskbarDimensions =
-            DimensionUtils.getTaskbarPhoneDimensions(dp, resources, TaskbarManager.isPhoneMode(dp))
+            DimensionUtils.getTaskbarPhoneDimensions(dp, resources,
+                    TaskbarManager.isPhoneMode(dp))
         val endStartMargins = resources.getDimensionPixelSize(R.dimen.taskbar_nav_buttons_size)
         navContainerParams.width = taskbarDimensions.x
         navContainerParams.height = ViewGroup.LayoutParams.MATCH_PARENT
diff --git a/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneSeascapeNavLayoutter.kt b/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneSeascapeNavLayoutter.kt
new file mode 100644
index 0000000..f0fe581
--- /dev/null
+++ b/quickstep/src/com/android/launcher3/taskbar/navbutton/PhoneSeascapeNavLayoutter.kt
@@ -0,0 +1,46 @@
+/*
+* Copyright (C) 2023 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License
+*/
+
+package com.android.launcher3.taskbar.navbutton
+
+import android.content.res.Resources
+import android.view.ViewGroup
+import android.widget.LinearLayout
+import com.android.launcher3.DeviceProfile
+
+class PhoneSeascapeNavLayoutter(
+        resources: Resources,
+        navBarContainer: LinearLayout,
+        endContextualContainer: ViewGroup,
+        startContextualContainer: ViewGroup
+) :
+        PhoneLandscapeNavLayoutter(
+                resources,
+                navBarContainer,
+                endContextualContainer,
+                startContextualContainer
+        ) {
+
+    override fun layoutButtons(dp: DeviceProfile, isContextualButtonShowing: Boolean) {
+        // TODO(b/230395757): Polish pending, this is just to make it usable
+        super.layoutButtons(dp, isContextualButtonShowing)
+        navButtonContainer.removeAllViews()
+        // Flip ordering of back and recents buttons
+        navButtonContainer.addView(backButton)
+        navButtonContainer.addView(homeButton)
+        navButtonContainer.addView(recentsButton)
+    }
+}
diff --git a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
index d241260..9fcadea 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/BaseRecentsViewStateController.java
@@ -24,33 +24,26 @@
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_MODAL;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SCALE;
-import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SPLIT_SELECT_FLOATING_TASK_TRANSLATE_OFFSCREEN;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_SPLIT_SELECT_INSTRUCTIONS_FADE;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_X;
 import static com.android.launcher3.states.StateAnimationConfig.ANIM_OVERVIEW_TRANSLATE_Y;
 import static com.android.launcher3.states.StateAnimationConfig.SKIP_OVERVIEW;
-import static com.android.quickstep.views.FloatingTaskView.PRIMARY_TRANSLATE_OFFSCREEN;
 import static com.android.quickstep.views.RecentsView.ADJACENT_PAGE_HORIZONTAL_OFFSET;
 import static com.android.quickstep.views.RecentsView.RECENTS_GRID_PROGRESS;
 import static com.android.quickstep.views.RecentsView.RECENTS_SCALE_PROPERTY;
 import static com.android.quickstep.views.RecentsView.TASK_SECONDARY_TRANSLATION;
 import static com.android.quickstep.views.RecentsView.TASK_THUMBNAIL_SPLASH_ALPHA;
 
-import android.graphics.Rect;
-import android.graphics.RectF;
 import android.util.FloatProperty;
 import android.view.animation.Interpolator;
 
 import androidx.annotation.NonNull;
 
 import com.android.launcher3.LauncherState;
-import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.dragndrop.DragLayer;
 import com.android.launcher3.statemanager.StateManager.StateHandler;
 import com.android.launcher3.states.StateAnimationConfig;
-import com.android.quickstep.views.FloatingTaskView;
 import com.android.quickstep.views.RecentsView;
 
 /**
@@ -115,49 +108,18 @@
                 config.getInterpolator(ANIM_OVERVIEW_TRANSLATE_Y, LINEAR));
 
         boolean exitingOverview = !FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get()
-                || !toState.overviewUi;
+                && !toState.overviewUi;
         if (mRecentsView.isSplitSelectionActive() && exitingOverview) {
-            // TODO (b/238651489): Refactor state management to avoid need for double check
-            FloatingTaskView floatingTask = mRecentsView.getFirstFloatingTaskView();
-            if (floatingTask != null) {
-                // We are in split selection state currently, transitioning to another state
-                DragLayer dragLayer = mLauncher.getDragLayer();
-                RectF onScreenRectF = new RectF();
-                Utilities.getBoundsForViewInDragLayer(mLauncher.getDragLayer(), floatingTask,
-                        new Rect(0, 0, floatingTask.getWidth(), floatingTask.getHeight()),
-                        false, null, onScreenRectF);
-                // Get the part of the floatingTask that intersects with the DragLayer (i.e. the
-                // on-screen portion)
-                onScreenRectF.intersect(
-                        dragLayer.getLeft(),
-                        dragLayer.getTop(),
-                        dragLayer.getRight(),
-                        dragLayer.getBottom()
-                );
-
-                setter.setFloat(
-                        mRecentsView.getFirstFloatingTaskView(),
-                        PRIMARY_TRANSLATE_OFFSCREEN,
-                        mRecentsView.getPagedOrientationHandler()
-                                .getFloatingTaskOffscreenTranslationTarget(
-                                        floatingTask,
-                                        onScreenRectF,
-                                        floatingTask.getStagePosition(),
-                                        mLauncher.getDeviceProfile()
-                                ),
-                        config.getInterpolator(
-                                ANIM_OVERVIEW_SPLIT_SELECT_FLOATING_TASK_TRANSLATE_OFFSCREEN,
-                                LINEAR
-                        ));
-                setter.setViewAlpha(
-                        mRecentsView.getSplitInstructionsView(),
-                        0,
-                        config.getInterpolator(
-                                ANIM_OVERVIEW_SPLIT_SELECT_INSTRUCTIONS_FADE,
-                                LINEAR
-                        )
-                );
-            }
+            setter.add(mRecentsView.getSplitSelectController().getSplitAnimationController()
+                    .animateAwayPlaceholder(mLauncher));
+            setter.setViewAlpha(
+                    mRecentsView.getSplitInstructionsView(),
+                    0,
+                    config.getInterpolator(
+                            ANIM_OVERVIEW_SPLIT_SELECT_INSTRUCTIONS_FADE,
+                            LINEAR
+                    )
+            );
         }
 
         setter.setFloat(mRecentsView, getContentAlphaProperty(), toState.overviewUi ? 1 : 0,
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index 582b795..3b53e8a 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -120,7 +120,6 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.popup.SystemShortcut;
 import com.android.launcher3.proxy.ProxyActivityStarter;
-import com.android.launcher3.proxy.StartActivityParams;
 import com.android.launcher3.statehandlers.DepthController;
 import com.android.launcher3.statehandlers.DesktopVisibilityController;
 import com.android.launcher3.statemanager.StateManager.AtomicAnimationFactory;
@@ -152,6 +151,7 @@
 import com.android.launcher3.util.SplitConfigurationOptions;
 import com.android.launcher3.util.SplitConfigurationOptions.SplitPositionOption;
 import com.android.launcher3.util.SplitConfigurationOptions.SplitSelectSource;
+import com.android.launcher3.util.StartActivityParams;
 import com.android.launcher3.util.TouchController;
 import com.android.launcher3.widget.LauncherWidgetHolder;
 import com.android.quickstep.OverviewCommandHelper;
@@ -193,6 +193,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
+import java.util.function.Consumer;
 import java.util.function.Predicate;
 import java.util.stream.Stream;
 
@@ -406,7 +407,8 @@
 
     private List<SystemShortcut.Factory<QuickstepLauncher>> getSplitShortcuts() {
 
-        if (!ENABLE_SPLIT_FROM_WORKSPACE.get() || !mDeviceProfile.isTablet) {
+        if (!ENABLE_SPLIT_FROM_WORKSPACE.get() || !mDeviceProfile.isTablet ||
+                mSplitSelectStateController.isSplitSelectActive()) {
             return Collections.emptyList();
         }
         RecentsView recentsView = getOverviewPanel();
@@ -545,11 +547,22 @@
 
         ArrayList<TouchController> list = new ArrayList<>();
         list.add(getDragController());
+        Consumer<AnimatorSet> splitAnimator = animatorSet -> {
+            AnimatorSet anim = mSplitSelectStateController.getSplitAnimationController()
+                    .animateAwayPlaceholder(QuickstepLauncher.this);
+            anim.addListener(new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    mSplitSelectStateController.resetState();
+                }
+            });
+            animatorSet.play(anim);
+        };
         switch (mode) {
             case NO_BUTTON:
                 list.add(new NoButtonQuickSwitchTouchController(this));
-                list.add(new NavBarToHomeTouchController(this));
-                list.add(new NoButtonNavbarToOverviewTouchController(this));
+                list.add(new NavBarToHomeTouchController(this, splitAnimator));
+                list.add(new NoButtonNavbarToOverviewTouchController(this, splitAnimator));
                 break;
             case TWO_BUTTONS:
                 list.add(new TwoButtonNavbarTouchController(this));
@@ -560,8 +573,8 @@
                 break;
             case THREE_BUTTONS:
                 list.add(new NoButtonQuickSwitchTouchController(this));
-                list.add(new NavBarToHomeTouchController(this));
-                list.add(new NoButtonNavbarToOverviewTouchController(this));
+                list.add(new NavBarToHomeTouchController(this, splitAnimator));
+                list.add(new NoButtonNavbarToOverviewTouchController(this, splitAnimator));
                 list.add(new PortraitStatesTouchController(this));
                 break;
             default:
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
index be53220..b266bcd 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NavBarToHomeTouchController.java
@@ -30,6 +30,7 @@
 import static com.android.launcher3.util.NavigationMode.THREE_BUTTONS;
 import static com.android.systemui.shared.system.ActivityManagerWrapper.CLOSE_SYSTEM_WINDOWS_REASON_RECENTS;
 
+import android.animation.AnimatorSet;
 import android.animation.ValueAnimator;
 import android.view.MotionEvent;
 import android.view.animation.Interpolator;
@@ -43,6 +44,7 @@
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.touch.SingleAxisSwipeDetector;
 import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.TouchController;
@@ -51,6 +53,8 @@
 import com.android.quickstep.util.OverviewToHomeAnim;
 import com.android.quickstep.views.RecentsView;
 
+import java.util.function.Consumer;
+
 /**
  * Handles swiping up on the nav bar to go home from launcher, e.g. overview or all apps.
  */
@@ -62,6 +66,7 @@
     private static final float OVERVIEW_TO_HOME_SCRIM_MULTIPLIER = 0.5f;
 
     private final Launcher mLauncher;
+    private final Consumer<AnimatorSet> mCancelSplitRunnable;
     private final SingleAxisSwipeDetector mSwipeDetector;
     private final float mPullbackDistance;
 
@@ -70,8 +75,14 @@
     private LauncherState mEndState = NORMAL;
     private AnimatorPlaybackController mCurrentAnimation;
 
-    public NavBarToHomeTouchController(Launcher launcher) {
+    /**
+     * @param cancelSplitRunnable Called when split placeholder view needs to be cancelled.
+     *                            Animation should be added to the provided AnimatorSet
+     */
+    public NavBarToHomeTouchController(Launcher launcher,
+            Consumer<AnimatorSet> cancelSplitRunnable) {
         mLauncher = launcher;
+        mCancelSplitRunnable = cancelSplitRunnable;
         mSwipeDetector = new SingleAxisSwipeDetector(mLauncher, this,
                 SingleAxisSwipeDetector.VERTICAL);
         mPullbackDistance = mLauncher.getResources().getDimension(R.dimen.home_pullback_distance);
@@ -183,7 +194,10 @@
             recentsView.switchToScreenshot(null,
                     () -> recentsView.finishRecentsAnimation(true /* toRecents */, null));
             if (mStartState.overviewUi) {
-                new OverviewToHomeAnim(mLauncher, () -> onSwipeInteractionCompleted(mEndState))
+                new OverviewToHomeAnim(mLauncher, () -> onSwipeInteractionCompleted(mEndState),
+                        FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get()
+                                ? mCancelSplitRunnable
+                                : null)
                         .animateWithVelocity(velocity);
             } else {
                 mLauncher.getStateManager().goToState(mEndState, true,
diff --git a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
index 2f5467e..4075388 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/NoButtonNavbarToOverviewTouchController.java
@@ -31,6 +31,7 @@
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_ONE_HANDED_ACTIVE;
 import static com.android.systemui.shared.system.QuickStepContract.SYSUI_STATE_OVERVIEW_DISABLED;
 
+import android.animation.AnimatorSet;
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.graphics.PointF;
@@ -53,6 +54,8 @@
 import com.android.quickstep.util.OverviewToHomeAnim;
 import com.android.quickstep.views.RecentsView;
 
+import java.util.function.Consumer;
+
 /**
  * Touch controller which handles swipe and hold from the nav bar to go to Overview. Swiping above
  * the nav bar falls back to go to All Apps. Swiping from the nav bar without holding goes to the
@@ -67,6 +70,7 @@
     private static final float TRANSLATION_ANIM_VELOCITY_DP_PER_MS = 0.8f;
 
     private final VibratorWrapper mVibratorWrapper;
+    private final Consumer<AnimatorSet> mCancelSplitRunnable;
     private final RecentsView mRecentsView;
     private final MotionPauseDetector mMotionPauseDetector;
     private final float mMotionPauseMinDisplacement;
@@ -82,12 +86,18 @@
     // Normal to Hint animation has flag SKIP_OVERVIEW, so we update this scrim with this animator.
     private ObjectAnimator mNormalToHintOverviewScrimAnimator;
 
-    public NoButtonNavbarToOverviewTouchController(Launcher l) {
+    /**
+     * @param cancelSplitRunnable Called when split placeholder view needs to be cancelled.
+     *                            Animation should be added to the provided AnimatorSet
+     */
+    public NoButtonNavbarToOverviewTouchController(Launcher l,
+            Consumer<AnimatorSet> cancelSplitRunnable) {
         super(l);
         mRecentsView = l.getOverviewPanel();
         mMotionPauseDetector = new MotionPauseDetector(l);
         mMotionPauseMinDisplacement = ViewConfiguration.get(l).getScaledTouchSlop();
         mVibratorWrapper = VibratorWrapper.INSTANCE.get(l.getApplicationContext());
+        mCancelSplitRunnable = cancelSplitRunnable;
     }
 
     @Override
@@ -197,6 +207,9 @@
             // state, but since the hint state tracks the entire screen without a clear endpoint, we
             // need to manually set the duration to a reasonable value.
             animator.setDuration(HINT_STATE.getTransitionDuration(mLauncher, true /* isToState */));
+            AnimatorSet animatorSet = new AnimatorSet();
+            mCancelSplitRunnable.accept(animatorSet);
+            animatorSet.start();
         }
         if (FeatureFlags.ENABLE_PREMIUM_HAPTICS_ALL_APPS.get() &&
                 ((mFromState == NORMAL && mToState == ALL_APPS)
@@ -268,7 +281,7 @@
     private void goToOverviewOrHomeOnDragEnd(float velocity) {
         boolean goToHomeInsteadOfOverview = !mMotionPauseDetector.isPaused();
         if (goToHomeInsteadOfOverview) {
-            new OverviewToHomeAnim(mLauncher, () -> onSwipeInteractionCompleted(NORMAL))
+            new OverviewToHomeAnim(mLauncher, () -> onSwipeInteractionCompleted(NORMAL), null)
                     .animateWithVelocity(velocity);
         }
         if (mReachedOverview) {
diff --git a/quickstep/src/com/android/quickstep/RecentsActivity.java b/quickstep/src/com/android/quickstep/RecentsActivity.java
index 7cb6eb6..c58d6cc 100644
--- a/quickstep/src/com/android/quickstep/RecentsActivity.java
+++ b/quickstep/src/com/android/quickstep/RecentsActivity.java
@@ -58,6 +58,7 @@
 import com.android.launcher3.anim.AnimatorPlaybackController;
 import com.android.launcher3.anim.PendingAnimation;
 import com.android.launcher3.compat.AccessibilityManagerCompat;
+import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.statemanager.StateManager;
 import com.android.launcher3.statemanager.StateManager.AtomicAnimationFactory;
@@ -117,6 +118,7 @@
     // animation callback
     private final Handler mHandler = new Handler();
     private final Runnable mAnimationStartTimeoutRunnable = this::onAnimationStartTimeout;
+    private SplitSelectStateController mSplitSelectStateController;
 
     /**
      * Init drag layer and overview panel views.
@@ -129,13 +131,12 @@
         mFallbackRecentsView = findViewById(R.id.overview_panel);
         mActionsView = findViewById(R.id.overview_actions_view);
         getRootView().getSysUiScrim().getSysUIProgress().updateValue(0);
-
-        SplitSelectStateController controller =
+        mSplitSelectStateController =
                 new SplitSelectStateController(this, mHandler, getStateManager(),
-                         null /* depthController */, getStatsLogManager(),
+                        null /* depthController */, getStatsLogManager(),
                         SystemUiProxy.INSTANCE.get(this), RecentsModel.INSTANCE.get(this));
         mDragLayer.recreateControllers();
-        mFallbackRecentsView.init(mActionsView, controller);
+        mFallbackRecentsView.init(mActionsView, mSplitSelectStateController);
 
         mTISBindHelper = new TISBindHelper(this, this::onTISConnected);
     }
diff --git a/quickstep/src/com/android/quickstep/SystemUiProxy.java b/quickstep/src/com/android/quickstep/SystemUiProxy.java
index dd6499b..1de264a 100644
--- a/quickstep/src/com/android/quickstep/SystemUiProxy.java
+++ b/quickstep/src/com/android/quickstep/SystemUiProxy.java
@@ -19,6 +19,7 @@
 
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
+import static com.android.quickstep.util.LogUtils.splitFailureMessage;
 
 import android.app.ActivityManager;
 import android.app.ActivityOptions;
@@ -706,7 +707,7 @@
                 mSplitScreen.startTasks(taskId1, options1, taskId2, options2, splitPosition,
                         splitRatio, remoteTransition, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startTasks");
+                Log.w(TAG, splitFailureMessage("startTasks", "RemoteException"), e);
             }
         }
     }
@@ -719,7 +720,7 @@
                 mSplitScreen.startIntentAndTask(pendingIntent, userId1, options1, taskId, options2,
                         splitPosition, splitRatio, remoteTransition, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startIntentAndTask");
+                Log.w(TAG, splitFailureMessage("startIntentAndTask", "RemoteException"), e);
             }
         }
     }
@@ -735,7 +736,7 @@
                         pendingIntent2, userId2, shortcutInfo2, options2, splitPosition, splitRatio,
                         remoteTransition, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startIntents");
+                Log.w(TAG, splitFailureMessage("startIntents", "RemoteException"), e);
             }
         }
     }
@@ -748,7 +749,7 @@
                 mSplitScreen.startShortcutAndTask(shortcutInfo, options1, taskId, options2,
                         splitPosition, splitRatio, remoteTransition, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startShortcutAndTask");
+                Log.w(TAG, splitFailureMessage("startShortcutAndTask", "RemoteException"), e);
             }
         }
     }
@@ -764,7 +765,8 @@
                 mSplitScreen.startTasksWithLegacyTransition(taskId1, options1, taskId2, options2,
                         splitPosition, splitRatio, adapter, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startTasksWithLegacyTransition");
+                Log.w(TAG, splitFailureMessage(
+                        "startTasksWithLegacyTransition", "RemoteException"), e);
             }
         }
     }
@@ -778,7 +780,8 @@
                 mSplitScreen.startIntentAndTaskWithLegacyTransition(pendingIntent, userId1,
                         options1, taskId, options2, splitPosition, splitRatio, adapter, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startIntentAndTaskWithLegacyTransition");
+                Log.w(TAG, splitFailureMessage(
+                        "startIntentAndTaskWithLegacyTransition", "RemoteException"), e);
             }
         }
     }
@@ -791,7 +794,8 @@
                 mSplitScreen.startShortcutAndTaskWithLegacyTransition(shortcutInfo, options1,
                         taskId, options2, splitPosition, splitRatio, adapter, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startShortcutAndTaskWithLegacyTransition");
+                Log.w(TAG, splitFailureMessage(
+                        "startShortcutAndTaskWithLegacyTransition", "RemoteException"), e);
             }
         }
     }
@@ -811,7 +815,8 @@
                         shortcutInfo1, options1, pendingIntent2, userId2, shortcutInfo2, options2,
                         sidePosition, splitRatio, adapter, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startIntentsWithLegacyTransition");
+                Log.w(TAG, splitFailureMessage(
+                        "startIntentsWithLegacyTransition", "RemoteException"), e);
             }
         }
     }
@@ -823,7 +828,7 @@
                 mSplitScreen.startShortcut(packageName, shortcutId, position, options,
                         user, instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startShortcut");
+                Log.w(TAG, splitFailureMessage("startShortcut", "RemoteException"), e);
             }
         }
     }
@@ -835,7 +840,7 @@
                 mSplitScreen.startIntent(intent, userId, fillInIntent, position, options,
                         instanceId);
             } catch (RemoteException e) {
-                Log.w(TAG, "Failed call startIntent");
+                Log.w(TAG, splitFailureMessage("startIntent", "RemoteException"), e);
             }
         }
     }
diff --git a/quickstep/src/com/android/quickstep/util/LogUtils.kt b/quickstep/src/com/android/quickstep/util/LogUtils.kt
index 23a41f6..e34c4ec 100644
--- a/quickstep/src/com/android/quickstep/util/LogUtils.kt
+++ b/quickstep/src/com/android/quickstep/util/LogUtils.kt
@@ -20,6 +20,11 @@
 import com.android.launcher3.logging.InstanceId
 
 object LogUtils {
+    @JvmStatic
+    fun splitFailureMessage(caller: String, reason: String): String {
+        return "($caller) Splitscreen aborted: $reason"
+    }
+
     /**
      * @return a [Pair] of two InstanceIds but with different types, one that can be used by
      *   framework (if needing to pass through an intent or such) and one used in Launcher
diff --git a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
index 3cec1a4..6d9ecd9 100644
--- a/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
+++ b/quickstep/src/com/android/quickstep/util/OverviewToHomeAnim.java
@@ -22,12 +22,16 @@
 import android.animation.AnimatorSet;
 import android.util.Log;
 
+import androidx.annotation.Nullable;
+
 import com.android.launcher3.Launcher;
 import com.android.launcher3.LauncherState;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.statemanager.StateManager;
 import com.android.launcher3.states.StateAnimationConfig;
 
+import java.util.function.Consumer;
+
 /**
  * Runs an animation from overview to home. Currently, this animation is just a wrapper around the
  * normal state transition and may play a {@link WorkspaceRevealAnim} if we're starting from an
@@ -39,14 +43,18 @@
 
     private final Launcher mLauncher;
     private final Runnable mOnReachedHome;
+    @Nullable
+    private final Consumer<AnimatorSet> mSplitCancelConsumer;
 
     // Only run mOnReachedHome when both of these are true.
     private boolean mIsHomeStaggeredAnimFinished;
     private boolean mIsOverviewHidden;
 
-    public OverviewToHomeAnim(Launcher launcher, Runnable onReachedHome) {
+    public OverviewToHomeAnim(Launcher launcher, Runnable onReachedHome,
+            @Nullable Consumer<AnimatorSet> splitCancelConsumer) {
         mLauncher = launcher;
         mOnReachedHome = onReachedHome;
+        mSplitCancelConsumer = splitCancelConsumer;
     }
 
     /**
@@ -92,6 +100,11 @@
                 maybeOverviewToHomeAnimComplete();
             }
         });
+
+        if (mSplitCancelConsumer != null) {
+            // Clear split state when swiping to home
+            mSplitCancelConsumer.accept(anim);
+        }
         anim.play(stateAnim);
         stateManager.setCurrentAnimation(anim, NORMAL);
         anim.start();
diff --git a/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt b/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt
index b76fe5c..2e8af4c 100644
--- a/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt
+++ b/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt
@@ -17,14 +17,22 @@
 
 package com.android.quickstep.util
 
+import android.animation.AnimatorSet
 import android.animation.ObjectAnimator
 import android.graphics.Bitmap
+import android.graphics.Rect
+import android.graphics.RectF
 import android.graphics.drawable.Drawable
 import android.view.View
 import com.android.launcher3.DeviceProfile
+import com.android.launcher3.Launcher
+import com.android.launcher3.Utilities
 import com.android.launcher3.anim.PendingAnimation
+import com.android.launcher3.dragndrop.DragLayer
 import com.android.launcher3.util.SplitConfigurationOptions.SplitSelectSource
+import com.android.quickstep.views.FloatingTaskView
 import com.android.quickstep.views.IconView
+import com.android.quickstep.views.RecentsView
 import com.android.quickstep.views.TaskThumbnailView
 import com.android.quickstep.views.TaskView
 import com.android.quickstep.views.TaskView.TaskIdAttributeContainer
@@ -176,4 +184,38 @@
                     TaskThumbnailView.SPLIT_SELECT_TRANSLATE_X, 0f))
         }
     }
+
+
+    fun animateAwayPlaceholder(mLauncher: Launcher) : AnimatorSet {
+        val animatorSet = AnimatorSet()
+        val recentsView : RecentsView<*, *> = mLauncher.getOverviewPanel()
+        val floatingTask: FloatingTaskView = splitSelectStateController.firstFloatingTaskView
+                ?: return animatorSet
+
+        // We are in split selection state currently, transitioning to another state
+        val dragLayer: DragLayer = mLauncher.dragLayer
+        val onScreenRectF = RectF()
+        Utilities.getBoundsForViewInDragLayer(mLauncher.dragLayer, floatingTask,
+                Rect(0, 0, floatingTask.width, floatingTask.height),
+                false, null, onScreenRectF)
+        // Get the part of the floatingTask that intersects with the DragLayer (i.e. the
+        // on-screen portion)
+        onScreenRectF.intersect(
+                dragLayer.left.toFloat(),
+                dragLayer.top.toFloat(),
+                dragLayer.right.toFloat(),
+                dragLayer.bottom
+                        .toFloat()
+        )
+        animatorSet.play(ObjectAnimator.ofFloat(floatingTask,
+                FloatingTaskView.PRIMARY_TRANSLATE_OFFSCREEN,
+                recentsView.pagedOrientationHandler
+                        .getFloatingTaskOffscreenTranslationTarget(
+                                floatingTask,
+                                onScreenRectF,
+                                floatingTask.stagePosition,
+                                mLauncher.deviceProfile
+                        )))
+        return animatorSet
+    }
 }
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index e063b44..970cf64 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -561,7 +561,7 @@
                 new RemoteSplitLaunchTransitionRunner(firstTaskId, secondTaskId, callback);
         final RemoteTransition remoteTransition = new RemoteTransition(animationRunner,
                 ActivityThread.currentActivityThread().getApplicationThread(),
-                "LaunchSplitPair");
+                "LaunchAppFullscreen");
         InstanceId instanceId = LogUtils.getShellShareableInstanceId().first;
         if (TaskAnimationManager.ENABLE_SHELL_TRANSITIONS) {
             switch (launchData.getSplitLaunchType()) {
@@ -895,6 +895,7 @@
         mFirstFloatingTaskView = floatingTaskView;
     }
 
+    @Nullable
     public FloatingTaskView getFirstFloatingTaskView() {
         return mFirstFloatingTaskView;
     }
diff --git a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
index c91b183..01f6ae8 100644
--- a/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
+++ b/quickstep/src/com/android/quickstep/views/GroupedTaskView.java
@@ -223,11 +223,12 @@
         // Callbacks run from remote animation when recents animation not currently running
         InteractionJankMonitorWrapper.begin(this,
                 InteractionJankMonitorWrapper.CUJ_SPLIT_SCREEN_ENTER, "Enter form GroupedTaskView");
-        launchTask(success -> {
+        launchTaskInternal(success -> {
             endCallback.executeAllAndDestroy();
             InteractionJankMonitorWrapper.end(
                     InteractionJankMonitorWrapper.CUJ_SPLIT_SCREEN_ENTER);
-        }, false /* freezeTaskList */);
+        }, false /* freezeTaskList */, true /*launchingExistingTaskview*/);
+
 
         // Callbacks get run from recentsView for case when recents animation already running
         recentsView.addSideTaskLaunchCallback(endCallback);
@@ -236,7 +237,19 @@
 
     @Override
     public void launchTask(@NonNull Consumer<Boolean> callback, boolean isQuickswitch) {
-        getRecentsView().getSplitSelectController().launchExistingSplitPair(this, mTask.key.id,
+        launchTaskInternal(callback, isQuickswitch, false /*launchingExistingTaskview*/);
+    }
+
+    /**
+     * @param launchingExistingTaskView {@link SplitSelectStateController#launchExistingSplitPair}
+     * uses existence of GroupedTaskView as control flow of how to animate in the incoming task. If
+     * we're launching from overview (from overview thumbnails) then pass in {@code true},
+     * otherwise pass in {@code false} for case like quickswitching from home to task
+     */
+    private void launchTaskInternal(@NonNull Consumer<Boolean> callback, boolean isQuickswitch,
+            boolean launchingExistingTaskView) {
+        getRecentsView().getSplitSelectController().launchExistingSplitPair(
+                launchingExistingTaskView ? this : null, mTask.key.id,
                 mSecondaryTask.key.id, SplitConfigurationOptions.STAGE_POSITION_TOP_OR_LEFT,
                 callback, isQuickswitch, getSplitRatio());
     }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 421a48c..b8ec5f0 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -43,7 +43,6 @@
 import static com.android.launcher3.Utilities.squaredHypot;
 import static com.android.launcher3.Utilities.squaredTouchSlop;
 import static com.android.launcher3.config.FeatureFlags.ENABLE_GRID_ONLY_OVERVIEW;
-import static com.android.launcher3.config.FeatureFlags.ENABLE_LAUNCH_FROM_STAGED_APP;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_OVERVIEW_ACTIONS_SPLIT;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_CLEAR_ALL;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_TASK_DISMISS_SWIPE_UP;
@@ -54,6 +53,7 @@
 import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
 import static com.android.launcher3.util.SystemUiController.UI_STATE_FULLSCREEN_TASK;
 import static com.android.quickstep.TaskUtils.checkCurrentOrManagedUserId;
+import static com.android.quickstep.util.LogUtils.splitFailureMessage;
 import static com.android.quickstep.views.ClearAllButton.DISMISS_ALPHA;
 import static com.android.quickstep.views.DesktopTaskView.DESKTOP_MODE_SUPPORTED;
 import static com.android.quickstep.views.OverviewActionsView.FLAG_IS_NOT_TABLET;
@@ -3242,9 +3242,7 @@
         mSplitSelectStateController.setFirstFloatingTaskView(firstFloatingTaskView);
 
         // Allow user to click staged app to launch into fullscreen
-        if (ENABLE_LAUNCH_FROM_STAGED_APP.get()) {
-            firstFloatingTaskView.setOnClickListener(this::animateToFullscreen);
-        }
+        firstFloatingTaskView.setOnClickListener(this::animateToFullscreen);
 
         // SplitInstructionsView: animate in
         safeRemoveDragLayerView(mSplitInstructionsView);
@@ -4725,6 +4723,8 @@
             return false;
         }
         if (mSplitSelectStateController.isBothSplitAppsConfirmed()) {
+            Log.w(TAG, splitFailureMessage(
+                    "confirmSplitSelect", "both apps have already been set"));
             return true;
         }
         // Second task is selected either as an already-running Task or an Intent
@@ -4732,6 +4732,9 @@
             if (!task.isDockable) {
                 // Task does not support split screen
                 mSplitUnsupportedToast.show();
+                Log.w(TAG, splitFailureMessage("confirmSplitSelect",
+                        "selected Task (" + task.key.getPackageName()
+                                + ") is not dockable / does not support splitscreen"));
                 return true;
             }
             mSplitSelectStateController.setSecondTask(task);
@@ -6020,11 +6023,6 @@
     }
 
     @Nullable
-    public FloatingTaskView getFirstFloatingTaskView() {
-        return mSplitSelectStateController.getFirstFloatingTaskView();
-    }
-
-    @Nullable
     public SplitInstructionsView getSplitInstructionsView() {
         return mSplitInstructionsView;
     }
diff --git a/quickstep/tests/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactoryTest.kt b/quickstep/tests/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactoryTest.kt
index 236b5db..3920b08 100644
--- a/quickstep/tests/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactoryTest.kt
+++ b/quickstep/tests/src/com/android/launcher3/taskbar/navbutton/NavButtonLayoutFactoryTest.kt
@@ -1,6 +1,9 @@
 package com.android.launcher3.taskbar.navbutton
 
 import android.content.res.Resources
+import android.view.Surface
+import android.view.Surface.ROTATION_270
+import android.view.Surface.Rotation
 import android.view.View
 import android.view.ViewGroup
 import android.widget.FrameLayout
@@ -32,6 +35,8 @@
     @Mock lateinit var mockRecentsButton: ImageView
     @Mock lateinit var mockHomeButton: ImageView
 
+    private var surfaceRotation = Surface.ROTATION_0
+
     @Before
     fun setup() {
         MockitoAnnotations.initMocks(this)
@@ -60,7 +65,8 @@
                 isKidsMode = true,
                 isInSetup = false,
                 isThreeButtonNav = false,
-                phoneMode = false
+                phoneMode = false,
+                surfaceRotation = surfaceRotation
             )
         assert(layoutter is KidsNavLayoutter)
     }
@@ -74,7 +80,8 @@
                 isKidsMode = false,
                 isInSetup = true,
                 isThreeButtonNav = false,
-                phoneMode = false
+                phoneMode = false,
+                surfaceRotation = surfaceRotation
             )
         assert(layoutter is SetupNavLayoutter)
     }
@@ -88,7 +95,8 @@
                 isKidsMode = false,
                 isInSetup = false,
                 isThreeButtonNav = false,
-                phoneMode = false
+                phoneMode = false,
+                surfaceRotation = surfaceRotation
             )
         assert(layoutter is TaskbarNavLayoutter)
     }
@@ -101,7 +109,8 @@
             isKidsMode = false,
             isInSetup = false,
             isThreeButtonNav = false,
-            phoneMode = false
+            phoneMode = false,
+            surfaceRotation = surfaceRotation
         )
     }
 
@@ -114,7 +123,8 @@
                 isKidsMode = false,
                 isInSetup = false,
                 isThreeButtonNav = true,
-                phoneMode = true
+                phoneMode = true,
+                surfaceRotation = surfaceRotation
             )
         assert(layoutter is PhonePortraitNavLayoutter)
     }
@@ -129,11 +139,28 @@
                 isKidsMode = false,
                 isInSetup = false,
                 isThreeButtonNav = true,
-                phoneMode = true
+                phoneMode = true,
+                surfaceRotation = surfaceRotation
             )
         assert(layoutter is PhoneLandscapeNavLayoutter)
     }
 
+    @Test
+    fun getTaskbarSeascapeLayoutter() {
+        assumeTrue(TaskbarManager.FLAG_HIDE_NAVBAR_WINDOW)
+        mockDeviceProfile.isTaskbarPresent = false
+        setDeviceProfileLandscape()
+        val layoutter: NavButtonLayoutFactory.NavButtonLayoutter =
+                getLayoutter(
+                        isKidsMode = false,
+                        isInSetup = false,
+                        isThreeButtonNav = true,
+                        phoneMode = true,
+                        surfaceRotation = ROTATION_270
+                )
+        assert(layoutter is PhoneSeascapeNavLayoutter)
+    }
+
     @Test(expected = IllegalStateException::class)
     fun noValidLayoutForPhoneGestureNav() {
         assumeTrue(TaskbarManager.FLAG_HIDE_NAVBAR_WINDOW)
@@ -142,7 +169,8 @@
             isKidsMode = false,
             isInSetup = false,
             isThreeButtonNav = false,
-            phoneMode = true
+            phoneMode = true,
+            surfaceRotation = surfaceRotation
         )
     }
 
@@ -157,7 +185,8 @@
         isKidsMode: Boolean,
         isInSetup: Boolean,
         isThreeButtonNav: Boolean,
-        phoneMode: Boolean
+        phoneMode: Boolean,
+        @Rotation surfaceRotation: Int
     ): NavButtonLayoutFactory.NavButtonLayoutter {
         return NavButtonLayoutFactory.getUiLayoutter(
             deviceProfile = mockDeviceProfile,
@@ -166,7 +195,8 @@
             isKidsMode = isKidsMode,
             isInSetup = isInSetup,
             isThreeButtonNav = isThreeButtonNav,
-            phoneMode = phoneMode
+            phoneMode = phoneMode,
+            surfaceRotation = surfaceRotation
         )
     }
 }
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsTrackpad.java b/quickstep/tests/src/com/android/quickstep/TaplTestsTrackpad.java
new file mode 100644
index 0000000..e92dc8f
--- /dev/null
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsTrackpad.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.quickstep;
+
+import static org.junit.Assume.assumeTrue;
+
+import androidx.test.filters.LargeTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.launcher3.ui.PortraitLandscapeRunner.PortraitLandscape;
+import com.android.launcher3.ui.TaplTestsLauncher3;
+import com.android.quickstep.NavigationModeSwitchRule.NavigationModeSwitch;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@LargeTest
+@RunWith(AndroidJUnit4.class)
+public class TaplTestsTrackpad extends AbstractQuickStepTest {
+
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+        TaplTestsLauncher3.initialize(this);
+        mLauncher.setSwipeFromTrackpad(true);
+    }
+
+    @After
+    public void tearDown() {
+        mLauncher.setSwipeFromTrackpad(false);
+    }
+
+    @Test
+    @PortraitLandscape
+    @NavigationModeSwitch
+    public void goHome() throws Exception {
+        assumeTrue(mLauncher.isTablet());
+
+        startTestActivity(2);
+        mLauncher.goHome();
+    }
+}
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 7e43002..66c76ca 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -1407,8 +1407,7 @@
      */
     protected void completeAddShortcut(Intent data, int container, int screenId, int cellX,
             int cellY, PendingRequestArgs args) {
-        if (args.getRequestCode() != REQUEST_CREATE_SHORTCUT
-                || args.getPendingIntent().getComponent() == null) {
+        if (args.getRequestCode() != REQUEST_CREATE_SHORTCUT) {
             return;
         }
 
@@ -1916,16 +1915,10 @@
         info.spanX = spanX;
         info.spanY = spanY;
 
-        switch (info.itemType) {
-            case LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET:
-            case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
-                addAppWidgetFromDrop((PendingAddWidgetInfo) info);
-                break;
-            case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT:
-                processShortcutFromDrop((PendingAddShortcutInfo) info);
-                break;
-            default:
-                throw new IllegalStateException("Unknown item type: " + info.itemType);
+        if (info instanceof PendingAddWidgetInfo) {
+            addAppWidgetFromDrop((PendingAddWidgetInfo) info);
+        } else { // info can only be PendingAddShortcutInfo
+            processShortcutFromDrop((PendingAddShortcutInfo) info);
         }
     }
 
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index ddafd53..5f3d27c 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -20,9 +20,7 @@
 
 import static com.android.launcher3.LauncherAppState.ACTION_FORCE_ROLOAD;
 import static com.android.launcher3.config.FeatureFlags.IS_STUDIO_BUILD;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
 import static com.android.launcher3.testing.shared.TestProtocol.sDebugTracing;
-import static com.android.launcher3.testing.shared.TestProtocol.testLogD;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
@@ -69,7 +67,6 @@
 import com.android.launcher3.pm.PackageInstallInfo;
 import com.android.launcher3.pm.UserCache;
 import com.android.launcher3.shortcuts.ShortcutRequest;
-import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.IntSet;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.PackageUserKey;
@@ -310,11 +307,6 @@
      * @see UserCache#addUserEventListener
      */
     public void onUserEvent(UserHandle user, String action) {
-        if (TestProtocol.sDebugTracing) {
-            Log.d(TestProtocol.WORK_TAB_MISSING, "onBroadcastIntent intentAction: "
-                    + action + " user: " + user);
-        }
-
         if (Intent.ACTION_MANAGED_PROFILE_AVAILABLE.equals(action)
                 || Intent.ACTION_MANAGED_PROFILE_UNAVAILABLE.equals(action)) {
             enqueueModelUpdateTask(new PackageUpdatedTask(
@@ -562,7 +554,6 @@
             synchronized (mLock) {
                 // Everything loaded bind the data.
                 mModelLoaded = true;
-                testLogD(WORK_TAB_MISSING, "launcher model loaded");
             }
         }
 
diff --git a/src/com/android/launcher3/allapps/ActivityAllAppsContainerView.java b/src/com/android/launcher3/allapps/ActivityAllAppsContainerView.java
index 4590125..9dc82bd 100644
--- a/src/com/android/launcher3/allapps/ActivityAllAppsContainerView.java
+++ b/src/com/android/launcher3/allapps/ActivityAllAppsContainerView.java
@@ -18,10 +18,10 @@
 import static com.android.launcher3.allapps.ActivityAllAppsContainerView.AdapterHolder.SEARCH;
 import static com.android.launcher3.allapps.BaseAllAppsAdapter.VIEW_TYPE_WORK_DISABLED_CARD;
 import static com.android.launcher3.allapps.BaseAllAppsAdapter.VIEW_TYPE_WORK_EDU_CARD;
+import static com.android.launcher3.config.FeatureFlags.ENABLE_ALL_APPS_RV_PREINFLATION;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_COUNT;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_TAP_ON_PERSONAL_TAB;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_ALLAPPS_TAP_ON_WORK_TAB;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
 import static com.android.launcher3.util.ScrollableLayoutManager.PREDICTIVE_BACK_MIN_SCALE;
 
 import android.animation.Animator;
@@ -78,8 +78,6 @@
 import com.android.launcher3.keyboard.FocusedItemDecorator;
 import com.android.launcher3.model.StringCache;
 import com.android.launcher3.model.data.ItemInfo;
-import com.android.launcher3.testing.shared.TestProtocol;
-import com.android.launcher3.util.Executors;
 import com.android.launcher3.util.ItemInfoMatcher;
 import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.ActivityContext;
@@ -141,7 +139,7 @@
     private final SearchTransitionController mSearchTransitionController;
     private final Paint mHeaderPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
     private final Rect mInsets = new Rect();
-    private final AllAppsStore mAllAppsStore = new AllAppsStore();
+    private final AllAppsStore mAllAppsStore;
     private final RecyclerView.OnScrollListener mScrollListener =
             new RecyclerView.OnScrollListener() {
                 @Override
@@ -194,6 +192,7 @@
     public ActivityAllAppsContainerView(Context context, AttributeSet attrs, int defStyleAttr) {
         super(context, attrs, defStyleAttr);
         mActivityContext = ActivityContext.lookupContext(context);
+        mAllAppsStore = new AllAppsStore(mActivityContext);
 
         mScrimColor = Themes.getAttrColor(context, R.attr.allAppsScrimColor);
         mHeaderThreshold = getResources().getDimensionPixelSize(
@@ -208,10 +207,6 @@
         mNavBarScrimPaint.setColor(Themes.getNavBarScrimColor(mActivityContext));
 
         AllAppsStore.OnUpdateListener onAppsUpdated = this::onAppsUpdated;
-        if (TestProtocol.sDebugTracing) {
-            Log.d(WORK_TAB_MISSING, "ActivityAllAppsContainer#init registeringListener: " +
-                    onAppsUpdated);
-        }
         mAllAppsStore.addUpdateListener(onAppsUpdated);
 
         // This is a focus listener that proxies focus from a view into the list view.  This is to
@@ -559,6 +554,13 @@
             mAH.get(AdapterHolder.MAIN).setup(mViewPager.getChildAt(0), mPersonalMatcher);
             mAH.get(AdapterHolder.WORK).setup(mViewPager.getChildAt(1), mWorkManager.getMatcher());
             mAH.get(AdapterHolder.WORK).mRecyclerView.setId(R.id.apps_list_view_work);
+            if (ENABLE_ALL_APPS_RV_PREINFLATION.get()) {
+                // Let main and work rv share same view pool.
+                ((RecyclerView) mViewPager.getChildAt(0))
+                        .setRecycledViewPool(mAllAppsStore.getRecyclerViewPool());
+                ((RecyclerView) mViewPager.getChildAt(1))
+                        .setRecycledViewPool(mAllAppsStore.getRecyclerViewPool());
+            }
             if (FeatureFlags.ENABLE_EXPANDING_PAUSE_WORK_BUTTON.get()) {
                 mAH.get(AdapterHolder.WORK).mRecyclerView.addOnScrollListener(
                         mWorkManager.newScrollListener());
@@ -942,10 +944,6 @@
 
     private void onAppsUpdated() {
         mHasWorkApps = Stream.of(mAllAppsStore.getApps()).anyMatch(mWorkManager.getMatcher());
-        if (TestProtocol.sDebugTracing) {
-            Log.d(WORK_TAB_MISSING, "ActivityAllAppsContainerView#onAppsUpdated hasWorkApps: " +
-                    mHasWorkApps + " allApps: " + mAllAppsStore.getApps().length);
-        }
         if (!isSearching()) {
             rebindAdapters();
             if (mHasWorkApps) {
diff --git a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
index 7c5c003..602d1a3 100644
--- a/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
+++ b/src/com/android/launcher3/allapps/AllAppsRecyclerView.java
@@ -96,8 +96,8 @@
         int approxRows = (int) Math.ceil(grid.availableHeightPx / grid.allAppsIconSizePx);
         pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_EMPTY_SEARCH, 1);
         pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_ALL_APPS_DIVIDER, 1);
-        pool.setMaxRecycledViews(AllAppsGridAdapter.VIEW_TYPE_ICON, approxRows
-                * (mNumAppsPerRow + 1));
+        pool.setMaxRecycledViews(
+                AllAppsGridAdapter.VIEW_TYPE_ICON, (approxRows + 1) * grid.numShownAllAppsColumns);
     }
 
     @Override
diff --git a/src/com/android/launcher3/allapps/AllAppsStore.java b/src/com/android/launcher3/allapps/AllAppsStore.java
index 06af970..c3d0e6b 100644
--- a/src/com/android/launcher3/allapps/AllAppsStore.java
+++ b/src/com/android/launcher3/allapps/AllAppsStore.java
@@ -15,24 +15,27 @@
  */
 package com.android.launcher3.allapps;
 
+import static com.android.launcher3.config.FeatureFlags.ENABLE_ALL_APPS_RV_PREINFLATION;
 import static com.android.launcher3.model.data.AppInfo.COMPONENT_KEY_COMPARATOR;
 import static com.android.launcher3.model.data.AppInfo.EMPTY_ARRAY;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_SHOW_DOWNLOAD_PROGRESS_MASK;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
 
+import android.content.Context;
 import android.os.UserHandle;
-import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView.RecycledViewPool;
 
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.ItemInfo;
-import com.android.launcher3.testing.shared.TestProtocol;
+import com.android.launcher3.recyclerview.AllAppsRecyclerViewPool;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageUserKey;
+import com.android.launcher3.views.ActivityContext;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -45,8 +48,10 @@
 
 /**
  * A utility class to maintain the collection of all apps.
+ *
+ * @param <T> The type of the context.
  */
-public class AllAppsStore {
+public class AllAppsStore<T extends Context & ActivityContext> {
 
     // Defer updates flag used to defer all apps updates to the next draw.
     public static final int DEFER_UPDATES_NEXT_DRAW = 1 << 0;
@@ -64,20 +69,36 @@
     private int mModelFlags;
     private int mDeferUpdatesFlags = 0;
     private boolean mUpdatePending = false;
+    private final AllAppsRecyclerViewPool mAllAppsRecyclerViewPool = new AllAppsRecyclerViewPool();
+
+    private final T mContext;
 
     public AppInfo[] getApps() {
         return mApps;
     }
 
+    public AllAppsStore(@NonNull T context) {
+        mContext = context;
+    }
+
     /**
      * Sets the current set of apps and sets mapping for {@link PackageUserKey} to Uid for
      * the current set of apps.
      */
-    public void setApps(AppInfo[] apps, int flags, Map<PackageUserKey, Integer> map) {
+    public void setApps(AppInfo[] apps, int flags, Map<PackageUserKey, Integer> map)  {
         mApps = apps;
         mModelFlags = flags;
         notifyUpdate();
         mPackageUserKeytoUidMap = map;
+        // Preinflate all apps RV when apps has changed, which can happen after unlocking screen,
+        // rotating screen, or downloading/upgrading apps.
+        if (ENABLE_ALL_APPS_RV_PREINFLATION.get()) {
+            mAllAppsRecyclerViewPool.preInflateAllAppsViewHolders(mContext);
+        }
+    }
+
+    RecycledViewPool getRecyclerViewPool() {
+        return mAllAppsRecyclerViewPool;
     }
 
     /**
@@ -134,9 +155,6 @@
             return;
         }
         for (OnUpdateListener listener : mUpdateListeners) {
-            if (TestProtocol.sDebugTracing) {
-                Log.d(WORK_TAB_MISSING, "AllAppsStore#notifyUpdate listener: " + listener);
-            }
             listener.onAppsUpdated();
         }
     }
diff --git a/src/com/android/launcher3/allapps/BaseAllAppsAdapter.java b/src/com/android/launcher3/allapps/BaseAllAppsAdapter.java
index 8fa4276..72a0195 100644
--- a/src/com/android/launcher3/allapps/BaseAllAppsAdapter.java
+++ b/src/com/android/launcher3/allapps/BaseAllAppsAdapter.java
@@ -32,8 +32,8 @@
 
 import com.android.launcher3.BubbleTextView;
 import com.android.launcher3.R;
-import com.android.launcher3.allapps.search.SearchAdapterProvider;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.allapps.search.SearchAdapterProvider;
 import com.android.launcher3.config.FeatureFlags;
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.views.ActivityContext;
diff --git a/src/com/android/launcher3/allapps/WorkProfileManager.java b/src/com/android/launcher3/allapps/WorkProfileManager.java
index 44c233f..1ac8d87 100644
--- a/src/com/android/launcher3/allapps/WorkProfileManager.java
+++ b/src/com/android/launcher3/allapps/WorkProfileManager.java
@@ -25,7 +25,6 @@
 import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_HAS_SHORTCUT_PERMISSION;
 import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_CHANGE_PERMISSION;
 import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_ENABLED;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
 import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
 import android.os.Build;
@@ -47,7 +46,6 @@
 import com.android.launcher3.allapps.BaseAllAppsAdapter.AdapterItem;
 import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.model.data.ItemInfo;
-import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.workprofile.PersonalWorkSlidingTabStrip;
 
 import java.lang.annotation.Retention;
@@ -144,10 +142,6 @@
     }
 
     private void updateCurrentState(@WorkProfileState int currentState) {
-        if (TestProtocol.sDebugTracing) {
-            Log.d(WORK_TAB_MISSING, "WorkProfileManager#updateCurrentState: " +
-                    currentState, new Throwable());
-        }
         mCurrentState = currentState;
         if (getAH() != null) {
             getAH().mAppsList.updateAdapterItems();
@@ -166,10 +160,6 @@
      * Creates and attaches for profile toggle button to {@link ActivityAllAppsContainerView}
      */
     public boolean attachWorkModeSwitch() {
-        if (TestProtocol.sDebugTracing) {
-            Log.d(WORK_TAB_MISSING, "ActivityAllAppsContainerView#attachWorkModeSwitch "
-                    + "mWorkModeSwitch: " + mWorkModeSwitch);
-        }
         if (!mAllApps.getAppsStore().hasModelFlag(
                 FLAG_HAS_SHORTCUT_PERMISSION | FLAG_QUIET_MODE_CHANGE_PERMISSION)) {
             Log.e(TAG, "unable to attach work mode switch; Missing required permissions");
diff --git a/src/com/android/launcher3/config/FeatureFlags.java b/src/com/android/launcher3/config/FeatureFlags.java
index df24620..a070284 100644
--- a/src/com/android/launcher3/config/FeatureFlags.java
+++ b/src/com/android/launcher3/config/FeatureFlags.java
@@ -250,11 +250,6 @@
                     + "taskbar flavors");
 
     // TODO(Block 18): Clean up flags
-    public static final BooleanFlag ENABLE_LAUNCH_FROM_STAGED_APP = getDebugFlag(270395567,
-            "ENABLE_LAUNCH_FROM_STAGED_APP", ENABLED,
-            "Enable the ability to tap a staged app during split select to launch it in full "
-                    + "screen");
-
     public static final BooleanFlag ENABLE_APP_PAIRS = getDebugFlag(274189428,
             "ENABLE_APP_PAIRS", DISABLED,
             "Enables the ability to create and save app pairs on the Home screen for easy"
@@ -401,6 +396,12 @@
             "ENABLE_RESPONSIVE_WORKSPACE", DISABLED,
             "Enables new workspace grid calculations method.");
 
+    // TODO(Block 33): Clean up flags
+
+    public static final BooleanFlag ENABLE_ALL_APPS_RV_PREINFLATION = getDebugFlag(288161355,
+            "ENABLE_ALL_APPS_RV_PREINFLATION", DISABLED,
+            "Enables preinflating all apps icons to avoid scrolling jank.");
+
     public static class BooleanFlag {
 
         private final boolean mCurrentValue;
diff --git a/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java b/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
index 7bdec1c..0f3cad6 100644
--- a/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
+++ b/src/com/android/launcher3/dragndrop/PinShortcutRequestActivityInfo.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.dragndrop;
 
+import static android.content.pm.LauncherApps.EXTRA_PIN_ITEM_REQUEST;
+
 import static com.android.launcher3.LauncherAnimUtils.SPRING_LOADED_EXIT_DELAY;
 import static com.android.launcher3.LauncherState.EDIT_MODE;
 import static com.android.launcher3.LauncherState.SPRING_LOADED;
@@ -25,6 +27,7 @@
 import android.app.Activity;
 import android.content.ComponentName;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.LauncherApps;
 import android.content.pm.LauncherApps.PinItemRequest;
 import android.content.pm.PackageManager;
@@ -41,6 +44,7 @@
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.pm.PinRequestHelper;
 import com.android.launcher3.pm.ShortcutConfigActivityInfo;
+import com.android.launcher3.util.StartActivityParams;
 
 import java.util.function.Supplier;
 
@@ -105,7 +109,11 @@
 
     @Override
     public boolean startConfigActivity(Activity activity, int requestCode) {
-        return false;
+        new StartActivityParams(activity, requestCode).deliverResult(
+                activity,
+                Activity.RESULT_OK,
+                new Intent().putExtra(EXTRA_PIN_ITEM_REQUEST, mRequestSupplier.get()));
+        return true;
     }
 
     @Override
diff --git a/src/com/android/launcher3/model/BaseModelUpdateTask.java b/src/com/android/launcher3/model/BaseModelUpdateTask.java
index 866e222..97f540e 100644
--- a/src/com/android/launcher3/model/BaseModelUpdateTask.java
+++ b/src/com/android/launcher3/model/BaseModelUpdateTask.java
@@ -15,9 +15,6 @@
  */
 package com.android.launcher3.model;
 
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
-import static com.android.launcher3.testing.shared.TestProtocol.testLogD;
-
 import android.util.Log;
 
 import androidx.annotation.NonNull;
@@ -33,7 +30,6 @@
 import com.android.launcher3.model.data.AppInfo;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
-import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.PackageUserKey;
 import com.android.launcher3.widget.model.WidgetsListBaseEntry;
@@ -77,7 +73,6 @@
     @Override
     public final void run() {
         boolean isModelLoaded = Objects.requireNonNull(mModel).isModelLoaded();
-        testLogD(WORK_TAB_MISSING, "modelLoaded: " + isModelLoaded + " forTask: " + this);
         if (!isModelLoaded) {
             if (DEBUG_TASKS) {
                 Log.d(TAG, "Ignoring model task since loader is pending=" + this);
@@ -115,10 +110,6 @@
         List<WorkspaceItemInfo> workspaceUpdates = allUpdates.stream()
                 .filter(info -> info.id != ItemInfo.NO_ID)
                 .collect(Collectors.toList());
-        if (TestProtocol.sDebugTracing) {
-            Log.d(WORK_TAB_MISSING, "allUpdates: " + allUpdates.size() + ", workspaceUpdates "
-                    + workspaceUpdates.size());
-        }
         if (!workspaceUpdates.isEmpty()) {
             scheduleCallbackTask(c -> c.bindWorkspaceItemsChanged(workspaceUpdates));
         }
@@ -157,12 +148,7 @@
     }
 
     public void bindApplicationsIfNeeded() {
-        boolean changeFlag = mAllAppsList.getAndResetChangeFlag();
-        if (TestProtocol.sDebugTracing) {
-            Log.d(WORK_TAB_MISSING, "bindApplicationsIfNeeded changeFlag? " +
-                    changeFlag);
-        }
-        if (changeFlag) {
+        if (mAllAppsList.getAndResetChangeFlag()) {
             AppInfo[] apps = mAllAppsList.copyData();
             int flags = mAllAppsList.getFlags();
             Map<PackageUserKey, Integer> packageUserKeytoUidMap = Arrays.stream(apps).collect(
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index 3daf4af..787ac38 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -24,8 +24,6 @@
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_SAFEMODE;
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_SUSPENDED;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
-import static com.android.launcher3.testing.shared.TestProtocol.testLogD;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 import static com.android.launcher3.util.PackageManagerHelper.hasShortcutsPermission;
 import static com.android.launcher3.util.PackageManagerHelper.isSystemApp;
@@ -932,7 +930,6 @@
     }
 
     private List<LauncherActivityInfo> loadAllApps() {
-        testLogD(WORK_TAB_MISSING, "loadingAllApps");
         final List<UserHandle> profiles = mUserCache.getUserProfiles();
         List<LauncherActivityInfo> allActivityList = new ArrayList<>();
         // Clear the list of apps
diff --git a/src/com/android/launcher3/model/PackageUpdatedTask.java b/src/com/android/launcher3/model/PackageUpdatedTask.java
index 8c938f4..2591550 100644
--- a/src/com/android/launcher3/model/PackageUpdatedTask.java
+++ b/src/com/android/launcher3/model/PackageUpdatedTask.java
@@ -93,11 +93,6 @@
         mOp = op;
         mUser = user;
         mPackages = packages;
-        if (TestProtocol.sDebugTracing) {
-            Log.d(TestProtocol.WORK_TAB_MISSING, "PackageUpdatedTask mOp: " + mOp +
-                    " packageCount: " + mPackages.length + " user: " + user);
-            DEBUG = true;
-        }
     }
 
     @Override
@@ -142,9 +137,6 @@
                         // The update may have changed which shortcuts/widgets are available.
                         // Refresh the widgets for the package if we have an activity running.
                         Launcher launcher = Launcher.ACTIVITY_TRACKER.getCreatedActivity();
-                        if (TestProtocol.sDebugTracing) {
-                            Log.d(TestProtocol.WORK_TAB_MISSING, "launcher: " + launcher);
-                        }
                         if (launcher != null) {
                             launcher.refreshAndBindWidgetsForPackageUser(
                                     new PackageUserKey(packages[i], mUser));
diff --git a/src/com/android/launcher3/model/UserLockStateChangedTask.java b/src/com/android/launcher3/model/UserLockStateChangedTask.java
index cb78138..63ca35b 100644
--- a/src/com/android/launcher3/model/UserLockStateChangedTask.java
+++ b/src/com/android/launcher3/model/UserLockStateChangedTask.java
@@ -16,12 +16,10 @@
 package com.android.launcher3.model;
 
 import static com.android.launcher3.model.data.ItemInfoWithIcon.FLAG_DISABLED_LOCKED_USER;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
 
 import android.content.Context;
 import android.content.pm.ShortcutInfo;
 import android.os.UserHandle;
-import android.util.Log;
 
 import androidx.annotation.NonNull;
 
@@ -31,7 +29,6 @@
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.shortcuts.ShortcutRequest;
 import com.android.launcher3.shortcuts.ShortcutRequest.QueryResult;
-import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.ComponentKey;
 import com.android.launcher3.util.ItemInfoMatcher;
 
@@ -63,10 +60,6 @@
         if (mIsUserUnlocked) {
             QueryResult shortcuts = new ShortcutRequest(context, mUser)
                     .query(ShortcutRequest.PINNED);
-            if (TestProtocol.sDebugTracing) {
-                Log.d(WORK_TAB_MISSING, "shortcutQuery success? "
-                        + shortcuts.wasSuccess());
-            }
             if (shortcuts.wasSuccess()) {
                 for (ShortcutInfo shortcut : shortcuts) {
                     pinnedShortcuts.put(ShortcutKey.fromInfo(shortcut), shortcut);
@@ -89,9 +82,6 @@
                     if (mIsUserUnlocked) {
                         ShortcutKey key = ShortcutKey.fromItemInfo(si);
                         ShortcutInfo shortcut = pinnedShortcuts.get(key);
-                        if (TestProtocol.sDebugTracing) {
-                            Log.d(WORK_TAB_MISSING, "shortcutInfo: " + shortcut);
-                        }
                         // We couldn't verify the shortcut during loader. If its no longer available
                         // (probably due to clear data), delete the workspace item as well
                         if (shortcut == null) {
diff --git a/src/com/android/launcher3/pm/UserCache.java b/src/com/android/launcher3/pm/UserCache.java
index c313886..92822ab 100644
--- a/src/com/android/launcher3/pm/UserCache.java
+++ b/src/com/android/launcher3/pm/UserCache.java
@@ -17,8 +17,6 @@
 package com.android.launcher3.pm;
 
 import static com.android.launcher3.Utilities.ATLEAST_U;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
-import static com.android.launcher3.testing.shared.TestProtocol.testLogD;
 import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
 
 import android.content.Context;
@@ -94,8 +92,6 @@
 
     @AnyThread
     private void onUsersChanged(Intent intent) {
-        testLogD(WORK_TAB_MISSING, "onUsersChanged intent: " + intent);
-
         MODEL_EXECUTOR.execute(this::updateCache);
         UserHandle user = intent.getParcelableExtra(Intent.EXTRA_USER);
         if (user == null) {
diff --git a/src/com/android/launcher3/popup/PopupContainerWithArrow.java b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
index 8274789..1f26bab 100644
--- a/src/com/android/launcher3/popup/PopupContainerWithArrow.java
+++ b/src/com/android/launcher3/popup/PopupContainerWithArrow.java
@@ -125,6 +125,14 @@
         this(context, null, 0);
     }
 
+    @Override
+    protected View getAccessibilityInitialFocusView() {
+        if (mSystemShortcutContainer != null) {
+            return mSystemShortcutContainer.getChildAt(0);
+        }
+        return super.getAccessibilityInitialFocusView();
+    }
+
     public LauncherAccessibilityDelegate getAccessibilityDelegate() {
         return mAccessibilityDelegate;
     }
@@ -242,7 +250,6 @@
                     popupDataProvider.getNotificationKeysForItem(item),
                     systemShortcuts);
         }
-        launcher.tryClearAccessibilityFocus(icon);
         launcher.refreshAndBindWidgetsForPackageUser(PackageUserKey.fromItemInfo(item));
         container.requestFocus();
         return container;
diff --git a/src/com/android/launcher3/recyclerview/AllAppsRecyclerViewPool.kt b/src/com/android/launcher3/recyclerview/AllAppsRecyclerViewPool.kt
new file mode 100644
index 0000000..26dde29
--- /dev/null
+++ b/src/com/android/launcher3/recyclerview/AllAppsRecyclerViewPool.kt
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.launcher3.recyclerview
+
+import android.content.Context
+import androidx.recyclerview.widget.RecyclerView
+import androidx.recyclerview.widget.RecyclerView.RecycledViewPool
+import androidx.recyclerview.widget.RecyclerView.ViewHolder
+import com.android.launcher3.BubbleTextView
+import com.android.launcher3.allapps.BaseAllAppsAdapter
+import com.android.launcher3.util.Executors.MAIN_EXECUTOR
+import com.android.launcher3.util.Executors.VIEW_PREINFLATION_EXECUTOR
+import com.android.launcher3.views.ActivityContext
+import java.util.concurrent.Future
+
+private const val PREINFLATE_ICONS_ROW_COUNT = 4
+private const val EXTRA_ICONS_COUNT = 2
+
+/**
+ * An [RecycledViewPool] that preinflates app icons ([ViewHolder] of [BubbleTextView]) of all apps
+ * [RecyclerView]. The view inflation will happen on background thread and inflated [ViewHolder]s
+ * will be added to [RecycledViewPool] on main thread.
+ */
+class AllAppsRecyclerViewPool<T> : RecycledViewPool() {
+
+    private var future: Future<Void>? = null
+
+    /**
+     * Preinflate app icons. If all apps RV cannot be scrolled down, we don't need to preinflate.
+     */
+    fun <T> preInflateAllAppsViewHolders(context: T) where T : Context, T : ActivityContext {
+        val appsView = context.appsView ?: return
+        val activeRv: RecyclerView = appsView.activeRecyclerView ?: return
+        val preInflateCount = getPreinflateCount(context)
+        if (preInflateCount <= 0) {
+            return
+        }
+
+        // Because we perform onCreateViewHolder() on worker thread, we need a separate
+        // adapter/inflator object as they are not thread-safe. Note that the adapter
+        // just need to perform onCreateViewHolder(parent, VIEW_TYPE_ICON) so it doesn't need
+        // data source information.
+        val adapter: RecyclerView.Adapter<BaseAllAppsAdapter.ViewHolder> =
+            object : BaseAllAppsAdapter<T>(context, context.appsView.layoutInflater, null, null) {
+                override fun setAppsPerRow(appsPerRow: Int) = Unit
+                override fun getLayoutManager(): RecyclerView.LayoutManager? = null
+            }
+
+        // Inflate view holders on background thread, and added to view pool on main thread.
+        future?.cancel(true)
+        future =
+            VIEW_PREINFLATION_EXECUTOR.submit<Void> {
+                val viewHolders =
+                    Array(preInflateCount) {
+                        adapter.createViewHolder(activeRv, BaseAllAppsAdapter.VIEW_TYPE_ICON)
+                    }
+                MAIN_EXECUTOR.execute {
+                    for (i in 0 until minOf(viewHolders.size, getPreinflateCount(context))) {
+                        putRecycledView(viewHolders[i])
+                    }
+                }
+                null
+            }
+    }
+
+    /**
+     * After testing on phone, foldable and tablet, we found [PREINFLATE_ICONS_ROW_COUNT] rows of
+     * app icons plus [EXTRA_ICONS_COUNT] is the magic minimal count of app icons to preinflate to
+     * suffice fast scrolling.
+     */
+    fun <T> getPreinflateCount(context: T): Int where T : Context, T : ActivityContext {
+        val targetPreinflateCount =
+            PREINFLATE_ICONS_ROW_COUNT * context.deviceProfile.numShownAllAppsColumns +
+                EXTRA_ICONS_COUNT
+        val existingPreinflateCount = getRecycledViewCount(BaseAllAppsAdapter.VIEW_TYPE_ICON)
+        return targetPreinflateCount - existingPreinflateCount
+    }
+}
diff --git a/src/com/android/launcher3/util/DimensionUtils.kt b/src/com/android/launcher3/util/DimensionUtils.kt
index 9188c2e..0eb0e08 100644
--- a/src/com/android/launcher3/util/DimensionUtils.kt
+++ b/src/com/android/launcher3/util/DimensionUtils.kt
@@ -29,9 +29,9 @@
      */
     @JvmStatic
     fun getTaskbarPhoneDimensions(
-        deviceProfile: DeviceProfile,
-        res: Resources,
-        isPhoneMode: Boolean
+            deviceProfile: DeviceProfile,
+            res: Resources,
+            isPhoneMode: Boolean
     ): Point {
         val p = Point()
         // Taskbar for large screen
diff --git a/src/com/android/launcher3/util/Executors.java b/src/com/android/launcher3/util/Executors.java
index 6978e0c..dec4b5c 100644
--- a/src/com/android/launcher3/util/Executors.java
+++ b/src/com/android/launcher3/util/Executors.java
@@ -21,6 +21,7 @@
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.ThreadPoolExecutor;
@@ -58,6 +59,11 @@
             new LooperExecutor(
                     createAndStartNewLooper("UiThreadHelper", Process.THREAD_PRIORITY_FOREGROUND));
 
+
+    /** A background executor to preinflate views. */
+    public static final ExecutorService VIEW_PREINFLATION_EXECUTOR =
+            java.util.concurrent.Executors.newSingleThreadExecutor();
+
     /**
      * Utility method to get a started handler thread statically
      */
diff --git a/quickstep/src/com/android/launcher3/proxy/StartActivityParams.java b/src/com/android/launcher3/util/StartActivityParams.java
similarity index 94%
rename from quickstep/src/com/android/launcher3/proxy/StartActivityParams.java
rename to src/com/android/launcher3/util/StartActivityParams.java
index 4d0bee6..b48562f 100644
--- a/quickstep/src/com/android/launcher3/proxy/StartActivityParams.java
+++ b/src/com/android/launcher3/util/StartActivityParams.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.android.launcher3.proxy;
+package com.android.launcher3.util;
 
 import static android.app.PendingIntent.FLAG_MUTABLE;
 import static android.app.PendingIntent.FLAG_ONE_SHOT;
@@ -34,6 +34,9 @@
 import android.os.Parcelable;
 import android.util.Log;
 
+/**
+ * Wrapper class for parameters to start an activity.
+ */
 public class StartActivityParams implements Parcelable {
 
     private static final String TAG = "StartActivityParams";
@@ -93,6 +96,7 @@
         parcel.writeBundle(options);
     }
 
+    /** Perform the operation on the pendingIntent. */
     public void deliverResult(Context context, int resultCode, Intent data) {
         ActivityOptions options = allowBGLaunch(ActivityOptions.makeBasic());
         try {
@@ -105,7 +109,7 @@
     }
 
     public static final Parcelable.Creator<StartActivityParams> CREATOR =
-            new Parcelable.Creator<StartActivityParams>() {
+            new Parcelable.Creator<>() {
                 public StartActivityParams createFromParcel(Parcel source) {
                     return new StartActivityParams(source);
                 }
diff --git a/tests/shared/com/android/launcher3/testing/shared/TestProtocol.java b/tests/shared/com/android/launcher3/testing/shared/TestProtocol.java
index 84c3555..4073517 100644
--- a/tests/shared/com/android/launcher3/testing/shared/TestProtocol.java
+++ b/tests/shared/com/android/launcher3/testing/shared/TestProtocol.java
@@ -154,7 +154,6 @@
     public static final String REQUEST_MOCK_SENSOR_ROTATION = "mock-sensor-rotation";
 
     public static final String PERMANENT_DIAG_TAG = "TaplTarget";
-    public static final String WORK_TAB_MISSING = "b/243688989";
     public static final String TWO_TASKBAR_LONG_CLICKS = "b/262282528";
     public static final String FLAKY_ACTIVITY_COUNT = "b/260260325";
     public static final String ICON_MISSING = "b/282963545";
diff --git a/tests/src/com/android/launcher3/ui/WorkProfileTest.java b/tests/src/com/android/launcher3/ui/WorkProfileTest.java
index 026766c..7237387 100644
--- a/tests/src/com/android/launcher3/ui/WorkProfileTest.java
+++ b/tests/src/com/android/launcher3/ui/WorkProfileTest.java
@@ -18,7 +18,6 @@
 import static com.android.launcher3.LauncherState.ALL_APPS;
 import static com.android.launcher3.LauncherState.NORMAL;
 import static com.android.launcher3.allapps.AllAppsStore.DEFER_UPDATES_TEST;
-import static com.android.launcher3.testing.shared.TestProtocol.WORK_TAB_MISSING;
 import static com.android.launcher3.util.TestUtil.installDummyAppForUser;
 import static com.android.launcher3.util.rule.TestStabilityRule.LOCAL;
 import static com.android.launcher3.util.rule.TestStabilityRule.PLATFORM_POSTSUBMIT;
@@ -39,7 +38,6 @@
 import com.android.launcher3.allapps.WorkPausedCard;
 import com.android.launcher3.allapps.WorkProfileManager;
 import com.android.launcher3.tapl.LauncherInstrumentation;
-import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.TestUtil;
 import com.android.launcher3.util.rule.TestStabilityRule.Stability;
 
@@ -78,8 +76,6 @@
         installDummyAppForUser(mProfileUserId);
         updateWorkProfileSetupSuccessful("am start-user", output);
 
-        Log.d(WORK_TAB_MISSING, "workProfileSuccessful? " + mWorkProfileSetupSuccessful +
-                " shellCmd: " + logStr);
         if (!mWorkProfileSetupSuccessful) {
             return; // no need to setup launcher since all tests will skip.
         }
@@ -96,7 +92,6 @@
 
     @After
     public void removeWorkProfile() throws Exception {
-        Log.d(TestProtocol.WORK_TAB_MISSING, "WorkProfileTest teardown");
         executeOnLauncher(launcher -> {
             if (launcher == null || launcher.getAppsView() == null) {
                 return;
@@ -112,7 +107,6 @@
         mLauncher.getAllApps();
         waitForLauncherCondition("Work tab not setup", launcher -> {
             if (launcher.getAppsView().getContentView() instanceof AllAppsPagedView) {
-                Log.d(WORK_TAB_MISSING, "Deferring AppsStore updates");
                 launcher.getAppsView().getAppsStore().enableDeferUpdates(DEFER_UPDATES_TEST);
                 return true;
             }
diff --git a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
index df63ea6..ce50e22 100644
--- a/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
+++ b/tests/tapl/com/android/launcher3/tapl/LauncherInstrumentation.java
@@ -20,6 +20,7 @@
 import static android.content.pm.PackageManager.DONT_KILL_APP;
 import static android.content.pm.PackageManager.MATCH_ALL;
 import static android.content.pm.PackageManager.MATCH_DISABLED_COMPONENTS;
+import static android.view.MotionEvent.AXIS_GESTURE_SWIPE_FINGER_COUNT;
 
 import static com.android.launcher3.tapl.Folder.FOLDER_CONTENT_RES_ID;
 import static com.android.launcher3.tapl.TestHelpers.getOverviewPackageName;
@@ -197,11 +198,18 @@
     private boolean mCheckEventsForSuccessfulGestures = false;
     private Runnable mOnLauncherCrashed;
 
+    private boolean mSwipeFromTrackpad = false;
+    private int mPointerCount = 0;
+
     private static Pattern getTouchEventPattern(String prefix, String action) {
-        // The pattern includes checks that we don't get a multi-touch events or other surprises.
+        return getTouchEventPattern(prefix, action, 1);
+    }
+
+    private static Pattern getTouchEventPattern(String prefix, String action, int pointerCount) {
         return Pattern.compile(
                 prefix + ": MotionEvent.*?action=" + action + ".*?id\\[0\\]=0"
-                        + ".*?toolType\\[0\\]=TOOL_TYPE_FINGER.*?buttonState=0.*?pointerCount=1");
+                        + ".*?toolType\\[0\\]=TOOL_TYPE_FINGER.*?buttonState=0.*?pointerCount="
+                        + pointerCount);
     }
 
     private static Pattern getTouchEventPattern(String action) {
@@ -212,6 +220,10 @@
         return getTouchEventPattern("TouchInteractionService.onInputEvent", action);
     }
 
+    private static Pattern getTouchEventPatternTIS(String action, int pointerCount) {
+        return getTouchEventPattern("TouchInteractionService.onInputEvent", action, pointerCount);
+    }
+
     private static Pattern getKeyEventPattern(String action, String keyCode) {
         return Pattern.compile("Key event: KeyEvent.*action=" + action + ".*keyCode=" + keyCode);
     }
@@ -703,6 +715,10 @@
         mIgnoreTaskbarVisibility = ignoreTaskbarVisibility;
     }
 
+    public void setSwipeFromTrackpad(boolean swipeFromTrackpad) {
+        mSwipeFromTrackpad = swipeFromTrackpad;
+    }
+
     /**
      * Sets expected rotation.
      * TAPL periodically checks that Launcher didn't suddenly change the rotation to unexpected one.
@@ -993,7 +1009,7 @@
             // otherwise waitForIdle may return immediately in case when there was a big enough
             // pause in accessibility events prior to pressing Home.
             final String action;
-            if (getNavigationModel() == NavigationModel.ZERO_BUTTON) {
+            if (getNavigationModel() == NavigationModel.ZERO_BUTTON || mSwipeFromTrackpad) {
                 checkForAnomaly(false, true);
 
                 final Point displaySize = getRealDisplaySize();
@@ -1009,9 +1025,11 @@
                 } else {
                     action = "swiping up to home";
 
+                    int startY = mSwipeFromTrackpad ? displaySize.y * 3 / 4 : displaySize.y - 1;
+                    int endY = mSwipeFromTrackpad ? displaySize.y / 4 : displaySize.y / 2;
                     swipeToState(
-                            displaySize.x / 2, displaySize.y - 1,
-                            displaySize.x / 2, displaySize.y / 2,
+                            displaySize.x / 2, startY,
+                            displaySize.x / 2, endY,
                             ZERO_BUTTON_STEPS_FROM_BACKGROUND_TO_HOME, NORMAL_STATE_ORDINAL,
                             gestureStartFromLauncher ? GestureScope.INSIDE_TO_OUTSIDE
                                     : GestureScope.OUTSIDE_WITH_PILFER);
@@ -1052,14 +1070,16 @@
             waitForLauncherInitialized();
             final boolean launcherVisible =
                     isTablet() ? isLauncherContainerVisible() : isLauncherVisible();
-            if (getNavigationModel() == NavigationModel.ZERO_BUTTON) {
+            if (getNavigationModel() == NavigationModel.ZERO_BUTTON || mSwipeFromTrackpad) {
                 final Point displaySize = getRealDisplaySize();
                 final GestureScope gestureScope =
                         launcherVisible ? GestureScope.INSIDE_TO_OUTSIDE_WITH_KEYCODE
                                 : GestureScope.OUTSIDE_WITH_KEYCODE;
                 // TODO(b/225505986): change startY and endY back to displaySize.y / 2 once the
                 //  issue is solved.
-                linearGesture(0, displaySize.y / 4, displaySize.x / 2, displaySize.y / 4,
+                int startX = mSwipeFromTrackpad ? displaySize.x / 4 : 0;
+                int endX = mSwipeFromTrackpad ? displaySize.x * 3 / 4 : displaySize.x / 2;
+                linearGesture(startX, displaySize.y / 4, endX, displaySize.y / 4,
                         10, false, gestureScope);
             } else {
                 waitForNavigationUiObject("back").click();
@@ -1589,18 +1609,33 @@
     // Inject a swipe gesture. Inject exactly 'steps' motion points, incrementing event time by a
     // fixed interval each time.
     public void linearGesture(int startX, int startY, int endX, int endY, int steps,
-            boolean slowDown,
-            GestureScope gestureScope) {
+            boolean slowDown, GestureScope gestureScope) {
         log("linearGesture: " + startX + ", " + startY + " -> " + endX + ", " + endY);
         final long downTime = SystemClock.uptimeMillis();
         final Point start = new Point(startX, startY);
         final Point end = new Point(endX, endY);
         sendPointer(downTime, downTime, MotionEvent.ACTION_DOWN, start, gestureScope);
+        if (mSwipeFromTrackpad) {
+            sendPointer(downTime, downTime, getPointerAction(MotionEvent.ACTION_POINTER_DOWN, 1),
+                    start, gestureScope);
+            sendPointer(downTime, downTime, getPointerAction(MotionEvent.ACTION_POINTER_DOWN, 2),
+                    start, gestureScope);
+        }
         final long endTime = movePointer(
                 start, end, steps, false, downTime, downTime, slowDown, gestureScope);
+        if (mSwipeFromTrackpad) {
+            sendPointer(downTime, downTime, getPointerAction(MotionEvent.ACTION_POINTER_UP, 2),
+                    start, gestureScope);
+            sendPointer(downTime, downTime, getPointerAction(MotionEvent.ACTION_POINTER_UP, 1),
+                    start, gestureScope);
+        }
         sendPointer(downTime, endTime, MotionEvent.ACTION_UP, end, gestureScope);
     }
 
+    private static int getPointerAction(int action, int index) {
+        return action + (index << MotionEvent.ACTION_POINTER_INDEX_SHIFT);
+    }
+
     long movePointer(Point start, Point end, int steps, boolean isDecelerating, long downTime,
             long startTime, boolean slowDown, GestureScope gestureScope) {
         long endTime = movePointer(downTime, startTime, steps * GESTURE_STEP_MS,
@@ -1624,22 +1659,44 @@
         return getContext().getResources();
     }
 
+    private static MotionEvent getTrackpadThreeFingerMotionEvent(long downTime, long eventTime,
+            int action, float x, float y, int pointerCount) {
+        MotionEvent.PointerProperties[] pointerProperties =
+                new MotionEvent.PointerProperties[pointerCount];
+        MotionEvent.PointerCoords[] pointerCoords = new MotionEvent.PointerCoords[pointerCount];
+        for (int i = 0; i < pointerCount; i++) {
+            pointerProperties[i] = getPointerProperties(i);
+            pointerCoords[i] = getPointerCoords(x, y);
+            pointerCoords[i].setAxisValue(AXIS_GESTURE_SWIPE_FINGER_COUNT, 3);
+        }
+        return MotionEvent.obtain(downTime, eventTime, action, pointerCount, pointerProperties,
+                pointerCoords, 0, 0, 1.0f, 1.0f, 0, 0,
+                InputDevice.SOURCE_MOUSE | InputDevice.SOURCE_CLASS_POINTER, 0, 0,
+                MotionEvent.CLASSIFICATION_MULTI_FINGER_SWIPE);
+    }
+
     private static MotionEvent getMotionEvent(long downTime, long eventTime, int action,
             float x, float y) {
-        MotionEvent.PointerProperties properties = new MotionEvent.PointerProperties();
-        properties.id = 0;
-        properties.toolType = Configurator.getInstance().getToolType();
+        return MotionEvent.obtain(downTime, eventTime, action, 1,
+                new MotionEvent.PointerProperties[] {getPointerProperties(0)},
+                new MotionEvent.PointerCoords[] {getPointerCoords(x, y)},
+                0, 0, 1.0f, 1.0f, 0, 0, InputDevice.SOURCE_TOUCHSCREEN, 0);
+    }
 
+    private static MotionEvent.PointerProperties getPointerProperties(int pointerId) {
+        MotionEvent.PointerProperties properties = new MotionEvent.PointerProperties();
+        properties.id = pointerId;
+        properties.toolType = Configurator.getInstance().getToolType();
+        return properties;
+    }
+
+    private static MotionEvent.PointerCoords getPointerCoords(float x, float y) {
         MotionEvent.PointerCoords coords = new MotionEvent.PointerCoords();
         coords.pressure = 1;
         coords.size = 1;
         coords.x = x;
         coords.y = y;
-
-        return MotionEvent.obtain(downTime, eventTime, action, 1,
-                new MotionEvent.PointerProperties[]{properties},
-                new MotionEvent.PointerCoords[]{coords},
-                0, 0, 1.0f, 1.0f, 0, 0, InputDevice.SOURCE_TOUCHSCREEN, 0);
+        return coords;
     }
 
     private boolean hasTIS() {
@@ -1655,17 +1712,23 @@
     public void sendPointer(long downTime, long currentTime, int action, Point point,
             GestureScope gestureScope) {
         final boolean hasTIS = hasTIS();
-        switch (action) {
+        int pointerCount = 1;
+
+        switch (action & MotionEvent.ACTION_MASK) {
             case MotionEvent.ACTION_DOWN:
                 if (gestureScope != GestureScope.OUTSIDE_WITH_PILFER
                         && gestureScope != GestureScope.OUTSIDE_WITHOUT_PILFER
-                        && gestureScope != GestureScope.OUTSIDE_WITH_KEYCODE) {
+                        && gestureScope != GestureScope.OUTSIDE_WITH_KEYCODE
+                        && !mSwipeFromTrackpad) {
                     expectEvent(TestProtocol.SEQUENCE_MAIN, EVENT_TOUCH_DOWN);
                 }
                 if (hasTIS && (isTrackpadGestureEnabled()
                         || getNavigationModel() != NavigationModel.THREE_BUTTON)) {
                     expectEvent(TestProtocol.SEQUENCE_TIS, EVENT_TOUCH_DOWN_TIS);
                 }
+                if (mSwipeFromTrackpad) {
+                    mPointerCount = 1;
+                }
                 break;
             case MotionEvent.ACTION_UP:
                 if (hasTIS && gestureScope != GestureScope.INSIDE
@@ -1676,7 +1739,8 @@
                 }
                 if (gestureScope != GestureScope.OUTSIDE_WITH_PILFER
                         && gestureScope != GestureScope.OUTSIDE_WITHOUT_PILFER
-                        && gestureScope != GestureScope.OUTSIDE_WITH_KEYCODE) {
+                        && gestureScope != GestureScope.OUTSIDE_WITH_KEYCODE
+                        && !mSwipeFromTrackpad) {
                     expectEvent(TestProtocol.SEQUENCE_MAIN,
                             gestureScope == GestureScope.INSIDE
                                     || gestureScope == GestureScope.OUTSIDE_WITHOUT_PILFER
@@ -1696,9 +1760,29 @@
             case MotionEvent.ACTION_HOVER_EXIT:
                 expectEvent(TestProtocol.SEQUENCE_TIS, EVENT_HOVER_EXIT_TIS);
                 break;
+            case MotionEvent.ACTION_POINTER_DOWN:
+                mPointerCount++;
+                expectEvent(TestProtocol.SEQUENCE_TIS, getTouchEventPatternTIS(
+                        "ACTION_POINTER_DOWN", mPointerCount));
+                pointerCount = mPointerCount;
+                break;
+            case MotionEvent.ACTION_POINTER_UP:
+                pointerCount = mPointerCount;
+
+                // When the gesture is handled outside, it's cancelled within launcher.
+                if (gestureScope != GestureScope.INSIDE_TO_OUTSIDE_WITH_KEYCODE
+                        && gestureScope != GestureScope.OUTSIDE_WITH_KEYCODE) {
+                    expectEvent(TestProtocol.SEQUENCE_TIS, getTouchEventPatternTIS(
+                            "ACTION_POINTER_UP", mPointerCount));
+                }
+                mPointerCount--;
+                break;
         }
 
-        final MotionEvent event = getMotionEvent(downTime, currentTime, action, point.x, point.y);
+        final MotionEvent event = mSwipeFromTrackpad
+                ? getTrackpadThreeFingerMotionEvent(
+                        downTime, currentTime, action, point.x, point.y, pointerCount)
+                : getMotionEvent(downTime, currentTime, action, point.x, point.y);
         assertTrue("injectInputEvent failed",
                 mInstrumentation.getUiAutomation().injectInputEvent(event, true, false));
         event.recycle();
@@ -1706,8 +1790,7 @@
 
     public long movePointer(long downTime, long startTime, long duration, Point from, Point to,
             GestureScope gestureScope) {
-        return movePointer(
-                downTime, startTime, duration, false, from, to, gestureScope);
+        return movePointer(downTime, startTime, duration, false, from, to, gestureScope);
     }
 
     public long movePointer(long downTime, long startTime, long duration, boolean isDecelerating,