diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepWidgetHolder.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepWidgetHolder.java
index 01d5ff0..56fc4d1 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepWidgetHolder.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepWidgetHolder.java
@@ -17,7 +17,6 @@
 
 import static com.android.launcher3.BuildConfig.WIDGETS_ENABLED;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
-import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 
 import android.appwidget.AppWidgetHost;
 import android.appwidget.AppWidgetHostView;
@@ -100,7 +99,7 @@
                                     // for concurrent modification.
                                     new ArrayList<>(h.mProviderChangedListeners).forEach(
                                     ProviderChangedListener::notifyWidgetProvidersChanged))),
-                    UI_HELPER_EXECUTOR.getLooper());
+                    getWidgetHolderExecutor().getLooper());
             if (WIDGETS_ENABLED) {
                 sWidgetHost.startListening();
             }
@@ -199,8 +198,10 @@
             return;
         }
 
-        sWidgetHost.setAppWidgetHidden();
-        setListeningFlag(false);
+        getWidgetHolderExecutor().execute(() -> {
+            sWidgetHost.setAppWidgetHidden();
+            setListeningFlag(false);
+        });
     }
 
     @Override
diff --git a/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java b/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
index 3c66590..e17cdcd 100644
--- a/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
+++ b/quickstep/src/com/android/quickstep/LauncherSwipeHandlerV2.java
@@ -144,8 +144,6 @@
         return new FloatingViewHomeAnimationFactory(floatingIconView) {
             @Nullable
             private RectF mTargetRect;
-            @Nullable
-            private RectFSpringAnim mSiblingAnimation;
 
             @Nullable
             @Override
@@ -173,14 +171,6 @@
             }
 
             @Override
-            protected void playScalingRevealAnimation() {
-                if (mContainer != null) {
-                    new ScalingWorkspaceRevealAnim(mContainer, mSiblingAnimation,
-                            getWindowTargetRect()).start();
-                }
-            }
-
-            @Override
             public void setAnimation(RectFSpringAnim anim) {
                 super.setAnimation(anim);
                 mSiblingAnimation = anim;
@@ -245,6 +235,8 @@
                 isTargetTranslucent, fallbackBackgroundColor);
 
         return new FloatingViewHomeAnimationFactory(floatingWidgetView) {
+            @Nullable
+            private RectF mTargetRect;
 
             @Override
             @Nullable
@@ -254,8 +246,14 @@
 
             @Override
             public RectF getWindowTargetRect() {
-                super.getWindowTargetRect();
-                return backgroundLocation;
+                if (enableScalingRevealHomeAnimation()) {
+                    if (mTargetRect == null) {
+                        mTargetRect = new RectF(backgroundLocation);
+                    }
+                    return mTargetRect;
+                } else {
+                    return backgroundLocation;
+                }
             }
 
             @Override
@@ -266,10 +264,11 @@
             @Override
             public void setAnimation(RectFSpringAnim anim) {
                 super.setAnimation(anim);
-
-                anim.addAnimatorListener(floatingWidgetView);
-                floatingWidgetView.setOnTargetChangeListener(anim::onTargetPositionChanged);
-                floatingWidgetView.setFastFinishRunnable(anim::end);
+                mSiblingAnimation = anim;
+                mSiblingAnimation.addAnimatorListener(floatingWidgetView);
+                floatingWidgetView.setOnTargetChangeListener(
+                        mSiblingAnimation::onTargetPositionChanged);
+                floatingWidgetView.setFastFinishRunnable(mSiblingAnimation::end);
             }
 
             @Override
@@ -330,14 +329,23 @@
     }
 
     private class FloatingViewHomeAnimationFactory extends LauncherHomeAnimationFactory {
-
         private final FloatingView mFloatingView;
+        @Nullable
+        protected RectFSpringAnim mSiblingAnimation;
 
         FloatingViewHomeAnimationFactory(FloatingView floatingView) {
             mFloatingView = floatingView;
         }
 
         @Override
+        protected void playScalingRevealAnimation() {
+            if (mContainer != null) {
+                new ScalingWorkspaceRevealAnim(mContainer, mSiblingAnimation,
+                        getWindowTargetRect()).start();
+            }
+        }
+
+        @Override
         public void onCancel() {
             mFloatingView.fastFinish();
         }
diff --git a/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.java b/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.java
index 758a737..eeacee1 100644
--- a/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.java
+++ b/quickstep/src/com/android/quickstep/orientation/PortraitPagedViewHandler.java
@@ -259,7 +259,8 @@
             return new Pair<>(translationX, translationY);
         }
 
-        bannerParams.gravity = BOTTOM | ((deviceProfile.isLandscape) ? START : CENTER_HORIZONTAL);
+        bannerParams.gravity =
+                BOTTOM | (deviceProfile.isLeftRightSplit ? START : CENTER_HORIZONTAL);
 
         // Set correct width
         if (desiredTaskId == splitBounds.leftTopTaskId) {
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index 7877e8a..1dfab26 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -401,6 +401,7 @@
     @Test
     @NavigationModeSwitch
     @PortraitLandscape
+    @TestStabilityRule.Stability(flavors = LOCAL | PLATFORM_POSTSUBMIT) // b/325659406
     public void testQuickSwitchFromHome() throws Exception {
         startTestActivity(2);
         mLauncher.goHome().quickSwitchToPreviousApp();
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 4e566ab..d905801 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -2797,9 +2797,11 @@
     }
 
     private void updateDisallowBack() {
-        if (BuildCompat.isAtLeastV() && Flags.enableDesktopWindowingMode()
-            && mDeviceProfile.isTablet) {
-            // TODO(b/330183377) disable back in launcher when when we productionize
+        if (BuildCompat.isAtLeastV()
+                && Flags.enableDesktopWindowingMode()
+                && !Flags.enableDesktopWindowingWallpaperActivity()
+                && mDeviceProfile.isTablet) {
+            // TODO(b/333533253): Clean up after desktop wallpaper activity flag is rolled out
             return;
         }
         LauncherRootView rv = getRootView();
diff --git a/src/com/android/launcher3/widget/LauncherWidgetHolder.java b/src/com/android/launcher3/widget/LauncherWidgetHolder.java
index a5e22c5..1fb8c83 100644
--- a/src/com/android/launcher3/widget/LauncherWidgetHolder.java
+++ b/src/com/android/launcher3/widget/LauncherWidgetHolder.java
@@ -20,6 +20,7 @@
 import static com.android.launcher3.BuildConfig.WIDGETS_ENABLED;
 import static com.android.launcher3.Flags.enableWorkspaceInflation;
 import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
+import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
 import static com.android.launcher3.widget.LauncherAppWidgetProviderInfo.fromProviderInfo;
 
 import android.appwidget.AppWidgetHost;
@@ -36,6 +37,7 @@
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.WorkerThread;
 
 import com.android.launcher3.BaseActivity;
 import com.android.launcher3.BaseDraggingActivity;
@@ -44,6 +46,7 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.TestProtocol;
+import com.android.launcher3.util.LooperExecutor;
 import com.android.launcher3.util.ResourceBasedOverride;
 import com.android.launcher3.util.SafeCloseable;
 import com.android.launcher3.widget.LauncherAppWidgetHost.ListenableHostView;
@@ -51,6 +54,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.IntConsumer;
 
 /**
@@ -77,7 +81,7 @@
     protected final SparseArray<LauncherAppWidgetHostView> mViews = new SparseArray<>();
     protected final List<ProviderChangedListener> mProviderChangedListeners = new ArrayList<>();
 
-    protected int mFlags = FLAG_STATE_IS_NORMAL;
+    protected AtomicInteger mFlags = new AtomicInteger(FLAG_STATE_IS_NORMAL);
 
     // TODO(b/191735836): Replace with ActivityOptions.KEY_SPLASH_SCREEN_STYLE when un-hidden
     private static final String KEY_SPLASH_SCREEN_STYLE = "android.activity.splashScreenStyle";
@@ -96,6 +100,10 @@
                 context, appWidgetRemovedCallback, mProviderChangedListeners);
     }
 
+    protected LooperExecutor getWidgetHolderExecutor() {
+        return UI_HELPER_EXECUTOR;
+    }
+
     /**
      * Starts listening to the widget updates from the server side
      */
@@ -104,21 +112,23 @@
             return;
         }
 
-        try {
-            mWidgetHost.startListening();
-        } catch (Exception e) {
-            if (!Utilities.isBinderSizeError(e)) {
-                throw new RuntimeException(e);
+        getWidgetHolderExecutor().execute(() -> {
+            try {
+                mWidgetHost.startListening();
+            } catch (Exception e) {
+                if (!Utilities.isBinderSizeError(e)) {
+                    throw new RuntimeException(e);
+                }
+                // We're willing to let this slide. The exception is being caused by the list of
+                // RemoteViews which is being passed back. The startListening relationship will
+                // have been established by this point, and we will end up populating the
+                // widgets upon bind anyway. See issue 14255011 for more context.
             }
-            // We're willing to let this slide. The exception is being caused by the list of
-            // RemoteViews which is being passed back. The startListening relationship will
-            // have been established by this point, and we will end up populating the
-            // widgets upon bind anyway. See issue 14255011 for more context.
-        }
-        // TODO: Investigate why widgetHost.startListening() always return non-empty updates
-        setListeningFlag(true);
+            // TODO: Investigate why widgetHost.startListening() always return non-empty updates
+            setListeningFlag(true);
 
-        updateDeferredView();
+            MAIN_EXECUTOR.execute(() -> updateDeferredView());
+        });
     }
 
     /**
@@ -282,16 +292,23 @@
         if (!WIDGETS_ENABLED) {
             return;
         }
-        mWidgetHost.stopListening();
-        setListeningFlag(false);
+        getWidgetHolderExecutor().execute(() -> {
+            mWidgetHost.stopListening();
+            setListeningFlag(false);
+        });
     }
 
+    /**
+     * Update {@link FLAG_LISTENING} on {@link mFlags} after making binder calls from
+     * {@link sWidgetHost}.
+     */
+    @WorkerThread
     protected void setListeningFlag(final boolean isListening) {
         if (isListening) {
-            mFlags |= FLAG_LISTENING;
+            mFlags.updateAndGet(old -> old | FLAG_LISTENING);
             return;
         }
-        mFlags &= ~FLAG_LISTENING;
+        mFlags.updateAndGet(old -> old & ~FLAG_LISTENING);
     }
 
     /**
@@ -373,7 +390,7 @@
      *      as a result of using the same flow.
      */
     protected LauncherAppWidgetHostView recycleExistingView(LauncherAppWidgetHostView view) {
-        if ((mFlags & FLAG_LISTENING) == 0) {
+        if ((mFlags.get() & FLAG_LISTENING) == 0) {
             if (view instanceof PendingAppWidgetHostView pv && pv.isDeferredWidget()) {
                 return view;
             } else {
@@ -395,7 +412,7 @@
     @NonNull
     protected LauncherAppWidgetHostView createViewInternal(
             int appWidgetId, @NonNull LauncherAppWidgetProviderInfo appWidget) {
-        if ((mFlags & FLAG_LISTENING) == 0) {
+        if ((mFlags.get() & FLAG_LISTENING) == 0) {
             // Since the launcher hasn't started listening to widget updates, we can't simply call
             // host.createView here because the later will make a binder call to retrieve
             // RemoteViews from system process.
@@ -460,7 +477,7 @@
      * @return True if the host is listening to the updates, false otherwise
      */
     public boolean isListening() {
-        return (mFlags & FLAG_LISTENING) != 0;
+        return (mFlags.get() & FLAG_LISTENING) != 0;
     }
 
     /**
@@ -469,16 +486,17 @@
      */
     private void setShouldListenFlag(int flag, boolean on) {
         if (on) {
-            mFlags |= flag;
+            mFlags.updateAndGet(old -> old | flag);
         } else {
-            mFlags &= ~flag;
+            mFlags.updateAndGet(old -> old & ~flag);
         }
 
         final boolean listening = isListening();
-        if (!listening && shouldListen(mFlags)) {
+        int currentFlag = mFlags.get();
+        if (!listening && shouldListen(currentFlag)) {
             // Postpone starting listening until all flags are on.
             startListening();
-        } else if (listening && (mFlags & FLAG_ACTIVITY_STARTED) == 0) {
+        } else if (listening && (currentFlag & FLAG_ACTIVITY_STARTED) == 0) {
             // Postpone stopping listening until the activity is stopped.
             stopListening();
         }