diff --git a/quickstep/res/layout/taskbar_edu_features.xml b/quickstep/res/layout/taskbar_edu_features.xml
index a7bd184..aa1312e 100644
--- a/quickstep/res/layout/taskbar_edu_features.xml
+++ b/quickstep/res/layout/taskbar_edu_features.xml
@@ -20,7 +20,7 @@
     android:layout_height="wrap_content">
 
     <TextView
-        android:id="@+id/title"
+        android:id="@+id/taskbar_edu_title"
         style="@style/TextAppearance.TaskbarEduTooltip.Title"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
@@ -42,7 +42,7 @@
 
         app:layout_constraintEnd_toEndOf="@id/splitscreen_text"
         app:layout_constraintStart_toStartOf="@id/splitscreen_text"
-        app:layout_constraintTop_toBottomOf="@id/title" />
+        app:layout_constraintTop_toBottomOf="@id/taskbar_edu_title" />
 
     <TextView
         android:id="@+id/splitscreen_text"
@@ -72,7 +72,7 @@
 
         app:layout_constraintEnd_toEndOf="@id/pinning_text"
         app:layout_constraintStart_toStartOf="@id/pinning_text"
-        app:layout_constraintTop_toBottomOf="@id/title" />
+        app:layout_constraintTop_toBottomOf="@id/taskbar_edu_title" />
 
     <TextView
         android:id="@+id/pinning_text"
@@ -96,7 +96,7 @@
 
         app:layout_constraintEnd_toEndOf="@id/suggestions_text"
         app:layout_constraintStart_toStartOf="@id/suggestions_text"
-        app:layout_constraintTop_toBottomOf="@id/title" />
+        app:layout_constraintTop_toBottomOf="@id/taskbar_edu_title" />
 
     <TextView
         android:id="@+id/suggestions_text"
diff --git a/quickstep/res/layout/taskbar_edu_pinning.xml b/quickstep/res/layout/taskbar_edu_pinning.xml
index 27a7b23..5937d62 100644
--- a/quickstep/res/layout/taskbar_edu_pinning.xml
+++ b/quickstep/res/layout/taskbar_edu_pinning.xml
@@ -19,7 +19,7 @@
     android:layout_height="wrap_content">
 
     <TextView
-        android:id="@+id/title"
+        android:id="@+id/taskbar_edu_title"
         style="@style/TextAppearance.TaskbarEduTooltip.Title"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
@@ -37,7 +37,7 @@
         app:layout_constraintBottom_toTopOf="@id/pinning_text"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/title"
+        app:layout_constraintTop_toBottomOf="@id/taskbar_edu_title"
         app:lottie_rawRes="@raw/taskbar_edu_pinning"
         app:lottie_autoPlay="true"
         app:lottie_loop="true" />
diff --git a/quickstep/res/layout/taskbar_edu_search.xml b/quickstep/res/layout/taskbar_edu_search.xml
index ca84f35..ec4d4b4 100644
--- a/quickstep/res/layout/taskbar_edu_search.xml
+++ b/quickstep/res/layout/taskbar_edu_search.xml
@@ -19,7 +19,7 @@
     android:layout_height="wrap_content">
 
     <TextView
-        android:id="@+id/title"
+        android:id="@+id/taskbar_edu_title"
         style="@style/TextAppearance.TaskbarEduTooltip.Title"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
@@ -37,7 +37,7 @@
         app:layout_constraintBottom_toTopOf="@id/search_edu_text"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/title"
+        app:layout_constraintTop_toBottomOf="@id/taskbar_edu_title"
         app:lottie_rawRes="@raw/taskbar_edu_search"
         app:lottie_autoPlay="true"
         app:lottie_loop="true" />
diff --git a/quickstep/res/layout/taskbar_edu_swipe.xml b/quickstep/res/layout/taskbar_edu_swipe.xml
index 3f5e819..9b4809e 100644
--- a/quickstep/res/layout/taskbar_edu_swipe.xml
+++ b/quickstep/res/layout/taskbar_edu_swipe.xml
@@ -19,7 +19,7 @@
     android:layout_height="wrap_content">
 
     <TextView
-        android:id="@+id/title"
+        android:id="@+id/taskbar_edu_title"
         style="@style/TextAppearance.TaskbarEduTooltip.Title"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
@@ -36,7 +36,7 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/title"
+        app:layout_constraintTop_toBottomOf="@id/taskbar_edu_title"
         app:lottie_autoPlay="true"
         app:lottie_loop="true"
         app:lottie_rawRes="@raw/taskbar_edu_stashing" />
diff --git a/quickstep/res/values-de/strings.xml b/quickstep/res/values-de/strings.xml
index e937410..7986a55 100644
--- a/quickstep/res/values-de/strings.xml
+++ b/quickstep/res/values-de/strings.xml
@@ -118,7 +118,7 @@
     <string name="taskbar_edu_pinning_title" msgid="210102174154211712">"Taskleiste immer anzeigen"</string>
     <string name="taskbar_edu_pinning_standalone" msgid="2636919474366410467">"Damit die Taskleiste immer unten angezeigt wird, halte den Teiler gedrückt"</string>
     <string name="taskbar_search_edu_title" msgid="5569194922234364530">"Aktionstaste gedrückt halten, um auf dem Bildschirm zu suchen"</string>
-    <string name="taskbar_edu_search_disclosure" msgid="8734536088447779686">"Dieses Produkt verwendet den ausgewählten Teil deines Bildschirms für die Suche. Es gelten die <xliff:g id="BEGIN_PRIVACY_LINK">&lt;a href="%1$s"&gt;</xliff:g>Datenschutzerklärung<xliff:g id="END_PRIVACY_LINK">&lt;/a&gt;</xliff:g> und die <xliff:g id="BEGIN_TOS_LINK">&lt;a href="%2$s"&gt;</xliff:g>Nutzungsbedingungen<xliff:g id="END_TOS_LINK">&lt;/a&gt;</xliff:g> von Google."</string>
+    <string name="taskbar_edu_search_disclosure" msgid="8734536088447779686">"Dieses Produkt sucht dann anhand des ausgewählten Teils deines Displays nach weiteren Informationen. Es gelten die <xliff:g id="BEGIN_PRIVACY_LINK">&lt;a href="%1$s"&gt;</xliff:g>Datenschutzerklärung<xliff:g id="END_PRIVACY_LINK">&lt;/a&gt;</xliff:g> und die <xliff:g id="BEGIN_TOS_LINK">&lt;a href="%2$s"&gt;</xliff:g>Nutzungsbedingungen<xliff:g id="END_TOS_LINK">&lt;/a&gt;</xliff:g> von Google."</string>
     <string name="taskbar_edu_close" msgid="887022990168191073">"Schließen"</string>
     <string name="taskbar_edu_done" msgid="6880178093977704569">"Fertig"</string>
     <string name="taskbar_button_home" msgid="2151398979630664652">"Startbildschirm"</string>
diff --git a/quickstep/res/values-es-rUS/strings.xml b/quickstep/res/values-es-rUS/strings.xml
index 5ba3212..6cd544c 100644
--- a/quickstep/res/values-es-rUS/strings.xml
+++ b/quickstep/res/values-es-rUS/strings.xml
@@ -118,7 +118,7 @@
     <string name="taskbar_edu_pinning_title" msgid="210102174154211712">"Mostrar siempre la Barra de tareas"</string>
     <string name="taskbar_edu_pinning_standalone" msgid="2636919474366410467">"Mantén presionado el divisor para mostrar siempre la Barra de tareas en la parte inferior de la pantalla"</string>
     <string name="taskbar_search_edu_title" msgid="5569194922234364530">"Mantén presionada la tecla de acción para buscar qué hay en la pantalla"</string>
-    <string name="taskbar_edu_search_disclosure" msgid="8734536088447779686">"Este producto usa la parte seleccionada de la pantalla para buscar. Se aplican la <xliff:g id="BEGIN_PRIVACY_LINK">&lt;a href="%1$s"&gt;</xliff:g>Política de Privacidad<xliff:g id="END_PRIVACY_LINK">&lt;/a&gt;</xliff:g> y las <xliff:g id="BEGIN_TOS_LINK">&lt;a href="%2$s"&gt;</xliff:g>Condiciones del Servicio<xliff:g id="END_TOS_LINK">&lt;/a&gt;</xliff:g> de Google."</string>
+    <string name="taskbar_edu_search_disclosure" msgid="8734536088447779686">"Este producto usa la parte seleccionada de la pantalla para hacer búsquedas. Se aplican la <xliff:g id="BEGIN_PRIVACY_LINK">&lt;a href="%1$s"&gt;</xliff:g>Política de Privacidad<xliff:g id="END_PRIVACY_LINK">&lt;/a&gt;</xliff:g> y las <xliff:g id="BEGIN_TOS_LINK">&lt;a href="%2$s"&gt;</xliff:g>Condiciones del Servicio<xliff:g id="END_TOS_LINK">&lt;/a&gt;</xliff:g> de Google."</string>
     <string name="taskbar_edu_close" msgid="887022990168191073">"Cerrar"</string>
     <string name="taskbar_edu_done" msgid="6880178093977704569">"Listo"</string>
     <string name="taskbar_button_home" msgid="2151398979630664652">"Botón de inicio"</string>
diff --git a/quickstep/res/values-gl/strings.xml b/quickstep/res/values-gl/strings.xml
index edd55d5..df665ed 100644
--- a/quickstep/res/values-gl/strings.xml
+++ b/quickstep/res/values-gl/strings.xml
@@ -96,7 +96,7 @@
     <string name="action_share" msgid="2648470652637092375">"Compartir"</string>
     <string name="action_screenshot" msgid="8171125848358142917">"Facer captura"</string>
     <string name="action_split" msgid="2098009717623550676">"Dividir"</string>
-    <string name="action_save_app_pair" msgid="5974823919237645229">"Gardar parella apps"</string>
+    <string name="action_save_app_pair" msgid="5974823919237645229">"Gardar parella de apps"</string>
     <string name="toast_split_select_app" msgid="8464310533320556058">"Para usar a pantalla dividida, toca outra app"</string>
     <string name="toast_contextual_split_select_app" msgid="433510957123687090">"Escolle outra aplicación para usar a pantalla dividida."</string>
     <string name="toast_split_select_app_cancel" msgid="1939025102486630426">"Cancelar"</string>
diff --git a/quickstep/res/values-pt/strings.xml b/quickstep/res/values-pt/strings.xml
index ede50cc..fad3164 100644
--- a/quickstep/res/values-pt/strings.xml
+++ b/quickstep/res/values-pt/strings.xml
@@ -118,7 +118,7 @@
     <string name="taskbar_edu_pinning_title" msgid="210102174154211712">"Sempre mostrar a Barra de tarefas"</string>
     <string name="taskbar_edu_pinning_standalone" msgid="2636919474366410467">"Toque e pressione o divisor para sempre mostrar a Barra de tarefas na parte de baixo da tela"</string>
     <string name="taskbar_search_edu_title" msgid="5569194922234364530">"Toque na tecla de ação e pressione para pesquisar o que está na tela"</string>
-    <string name="taskbar_edu_search_disclosure" msgid="8734536088447779686">"O produto usa a parte selecionada da tela para pesquisar. O uso desses dados está sujeito à <xliff:g id="BEGIN_PRIVACY_LINK">&lt;a href="%1$s"&gt;</xliff:g>Política de Privacidade<xliff:g id="END_PRIVACY_LINK">&lt;/a&gt;</xliff:g> e aos <xliff:g id="BEGIN_TOS_LINK">&lt;a href="%2$s"&gt;</xliff:g>Termos de Serviço<xliff:g id="END_TOS_LINK">&lt;/a&gt;</xliff:g> do Google."</string>
+    <string name="taskbar_edu_search_disclosure" msgid="8734536088447779686">"Este produto usa a parte selecionada da tela para pesquisar. O uso desses dados está sujeito à <xliff:g id="BEGIN_PRIVACY_LINK">&lt;a href="%1$s"&gt;</xliff:g>Política de Privacidade<xliff:g id="END_PRIVACY_LINK">&lt;/a&gt;</xliff:g> e aos <xliff:g id="BEGIN_TOS_LINK">&lt;a href="%2$s"&gt;</xliff:g>Termos de Serviço<xliff:g id="END_TOS_LINK">&lt;/a&gt;</xliff:g> do Google."</string>
     <string name="taskbar_edu_close" msgid="887022990168191073">"Fechar"</string>
     <string name="taskbar_edu_done" msgid="6880178093977704569">"Concluído"</string>
     <string name="taskbar_button_home" msgid="2151398979630664652">"Início"</string>
diff --git a/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.kt b/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.kt
index 3773d02..37e8d4d 100644
--- a/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.kt
+++ b/quickstep/src/com/android/launcher3/statehandlers/DesktopVisibilityController.kt
@@ -18,6 +18,7 @@
 import android.content.Context
 import android.os.Debug
 import android.util.Log
+import android.util.Slog
 import android.util.SparseArray
 import android.view.Display.DEFAULT_DISPLAY
 import android.window.DesktopModeFlags.ENABLE_DESKTOP_WINDOWING_WALLPAPER_ACTIVITY
@@ -152,7 +153,8 @@
             return areDesktopTasksVisible()
         }
 
-        val isInDesktopMode = displaysDesksConfigsMap[displayId].activeDeskId != INACTIVE_DESK_ID
+        val activeDeskId = getDisplayDeskConfig(displayId)?.activeDeskId ?: INACTIVE_DESK_ID
+        val isInDesktopMode = activeDeskId != INACTIVE_DESK_ID
         if (DEBUG) {
             Log.d(TAG, "isInDesktopMode: $isInDesktopMode")
         }
@@ -409,18 +411,16 @@
         }
     }
 
-    private fun getDisplayDeskConfig(displayId: Int): DisplayDeskConfig {
-        return checkNotNull(displaysDesksConfigsMap[displayId]) {
-            "Expected non-null desk config for display: $displayId"
-        }
-    }
+    private fun getDisplayDeskConfig(displayId: Int) =
+        displaysDesksConfigsMap[displayId]
+            ?: null.also { Slog.e(TAG, "Expected non-null desk config for display: $displayId") }
 
     private fun onCanCreateDesksChanged(displayId: Int, canCreateDesks: Boolean) {
         if (!DesktopModeStatus.enableMultipleDesktops(context)) {
             return
         }
 
-        getDisplayDeskConfig(displayId).canCreateDesks = canCreateDesks
+        getDisplayDeskConfig(displayId)?.canCreateDesks = canCreateDesks
     }
 
     private fun onDeskAdded(displayId: Int, deskId: Int) {
@@ -428,7 +428,7 @@
             return
         }
 
-        getDisplayDeskConfig(displayId).also {
+        getDisplayDeskConfig(displayId)?.also {
             check(it.deskIds.add(deskId)) {
                 "Found a duplicate desk Id: $deskId on display: $displayId"
             }
@@ -440,7 +440,7 @@
             return
         }
 
-        getDisplayDeskConfig(displayId).also {
+        getDisplayDeskConfig(displayId)?.also {
             check(it.deskIds.remove(deskId)) {
                 "Removing non-existing desk Id: $deskId on display: $displayId"
             }
@@ -457,7 +457,7 @@
 
         val wasInDesktopMode = isInDesktopModeAndNotInOverview(displayId)
 
-        getDisplayDeskConfig(displayId).also {
+        getDisplayDeskConfig(displayId)?.also {
             check(oldActiveDesk == it.activeDeskId) {
                 "Mismatch between the Shell's oldActiveDesk: $oldActiveDesk, and Launcher's: ${it.activeDeskId}"
             }
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
index b91f512..d531e2c 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarDragController.java
@@ -52,6 +52,7 @@
 import android.window.SurfaceSyncGroup;
 
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.app.animation.Interpolators;
 import com.android.internal.logging.InstanceId;
@@ -75,6 +76,7 @@
 import com.android.launcher3.popup.PopupContainerWithArrow;
 import com.android.launcher3.shortcuts.DeepShortcutView;
 import com.android.launcher3.shortcuts.ShortcutDragPreviewProvider;
+import com.android.launcher3.taskbar.bubbles.BubbleBarViewController;
 import com.android.launcher3.testing.TestLogging;
 import com.android.launcher3.testing.shared.TestProtocol;
 import com.android.launcher3.util.DisplayController;
@@ -517,6 +519,7 @@
         return mIsSystemDragInProgress;
     }
 
+    @VisibleForTesting
     private void maybeOnDragEnd() {
         if (!isDragging()) {
             ((BubbleTextView) mDragObject.originalView).setIconDisabled(false);
@@ -524,17 +527,38 @@
                     TaskbarAutohideSuspendController.FLAG_AUTOHIDE_SUSPEND_DRAGGING, false);
             mActivity.onDragEnd();
             if (mReturnAnimator == null) {
+                // If an item is dropped on the bubble bar, the bubble bar handles the drop,
+                // so it should not collapse along with the taskbar.
+                boolean droppedOnBubbleBar = notifyBubbleBarItemDropped();
                 // Upon successful drag, immediately stash taskbar.
                 // Note, this must be done last to ensure no AutohideSuspendFlags are active, as
                 // that will prevent us from stashing until the timeout.
-                mControllers.taskbarStashController.updateAndAnimateTransientTaskbar(true);
-
+                mControllers.taskbarStashController.updateAndAnimateTransientTaskbar(
+                        /* stash = */ true,
+                        /* shouldBubblesFollow = */ !droppedOnBubbleBar
+                );
                 mActivity.getStatsLogManager().logger().withItemInfo(mDragObject.dragInfo)
                         .log(LAUNCHER_APP_LAUNCH_DRAGDROP);
             }
         }
     }
 
+    /**
+     * Exits the Bubble Bar drop target mode if applicable.
+     *
+     * @return {@code true} if drop target mode was active.
+     */
+    private boolean notifyBubbleBarItemDropped() {
+        return mControllers.bubbleControllers.map(bc -> {
+            BubbleBarViewController bubbleBarViewController = bc.bubbleBarViewController;
+            boolean showingDropTarget = bubbleBarViewController.isShowingDropTarget();
+            if (showingDropTarget) {
+                bubbleBarViewController.onItemDroppedInBubbleBarDragZone();
+            }
+            return showingDropTarget;
+        }).orElse(false);
+    }
+
     @Override
     protected void endDrag() {
         if (mDisallowGlobalDrag) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt
index 26a552e..b4ffb74 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarEduTooltipController.kt
@@ -141,6 +141,10 @@
         tooltipStep = TOOLTIP_STEP_FEATURES
         inflateTooltip(R.layout.taskbar_edu_swipe)
         tooltip?.run {
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.taskbar_edu_title),
+                TypefaceUtils.FONT_FAMILY_HEADLINE_SMALL_EMPHASIZED,
+            )
             requireViewById<LottieAnimationView>(R.id.swipe_animation).supportLightTheme()
             show()
         }
@@ -180,6 +184,23 @@
                 pinningEdu.visibility = GONE
             }
 
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.taskbar_edu_title),
+                TypefaceUtils.FONT_FAMILY_HEADLINE_SMALL_EMPHASIZED,
+            )
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.splitscreen_text),
+                TypefaceUtils.FONT_FAMILY_BODY_MEDIUM_BASELINE,
+            )
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.suggestions_text),
+                TypefaceUtils.FONT_FAMILY_BODY_MEDIUM_BASELINE,
+            )
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.pinning_text),
+                TypefaceUtils.FONT_FAMILY_BODY_MEDIUM_BASELINE,
+            )
+
             // Set up layout parameters.
             content.updateLayoutParams { width = MATCH_PARENT }
             updateLayoutParams<MarginLayoutParams> {
@@ -231,6 +252,15 @@
             requireViewById<LottieAnimationView>(R.id.standalone_pinning_animation)
                 .supportLightTheme()
 
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.taskbar_edu_title),
+                TypefaceUtils.FONT_FAMILY_HEADLINE_SMALL_EMPHASIZED,
+            )
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.pinning_text),
+                TypefaceUtils.FONT_FAMILY_BODY_MEDIUM_BASELINE,
+            )
+
             updateLayoutParams<BaseDragLayer.LayoutParams> {
                 if (DisplayController.isTransientTaskbar(activityContext)) {
                     bottomMargin += activityContext.deviceProfile.taskbarHeight
@@ -276,6 +306,13 @@
             allowTouchDismissal = true
             requireViewById<LottieAnimationView>(R.id.search_edu_animation).supportLightTheme()
             val eduSubtitle: TextView = requireViewById(R.id.search_edu_text)
+
+            TypefaceUtils.setTypeface(
+                requireViewById(R.id.taskbar_edu_title),
+                TypefaceUtils.FONT_FAMILY_HEADLINE_SMALL_EMPHASIZED,
+            )
+            TypefaceUtils.setTypeface(eduSubtitle, TypefaceUtils.FONT_FAMILY_BODY_SMALL_BASELINE)
+
             showDisclosureText(eduSubtitle)
             updateLayoutParams<BaseDragLayer.LayoutParams> {
                 if (DisplayController.isTransientTaskbar(activityContext)) {
diff --git a/quickstep/src/com/android/launcher3/taskbar/TypefaceUtils.kt b/quickstep/src/com/android/launcher3/taskbar/TypefaceUtils.kt
index fa551b8..8b53ff1 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TypefaceUtils.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TypefaceUtils.kt
@@ -30,7 +30,10 @@
 class TypefaceUtils {
 
     companion object {
+        const val FONT_FAMILY_HEADLINE_SMALL_EMPHASIZED = "variable-headline-small-emphasized"
         const val FONT_FAMILY_HEADLINE_LARGE_EMPHASIZED = "variable-headline-large-emphasized"
+        const val FONT_FAMILY_BODY_SMALL_BASELINE = "variable-body-small"
+        const val FONT_FAMILY_BODY_MEDIUM_BASELINE = "variable-body-medium"
         const val FONT_FAMILY_LABEL_LARGE_BASELINE = "variable-label-large"
 
         @JvmStatic
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt
index 249773d..97be2e8 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarBackground.kt
@@ -44,10 +44,13 @@
     private val arrowVisibleHeight: Float
 
     private val strokeAlpha: Int
+    private val strokeColor: Int
+    private val strokeColorDropTarget: Int
     private val shadowAlpha: Int
     private val shadowBlur: Float
     private val keyShadowDistance: Float
     private var arrowHeightFraction = 1f
+    private var isShowingDropTarget: Boolean = false
 
     var arrowPositionX: Float = 0f
         private set
@@ -100,7 +103,9 @@
         fillPaint.flags = Paint.ANTI_ALIAS_FLAG
         fillPaint.style = Paint.Style.FILL
         // configure stroke paint
-        strokePaint.color = context.getColor(R.color.taskbar_stroke)
+        strokeColor = context.getColor(R.color.taskbar_stroke)
+        strokeColorDropTarget = context.getColor(com.android.internal.R.color.system_primary_fixed)
+        strokePaint.color = strokeColor
         strokePaint.flags = Paint.ANTI_ALIAS_FLAG
         strokePaint.style = Paint.Style.STROKE
         strokePaint.strokeWidth = res.getDimension(R.dimen.transient_taskbar_stroke_width)
@@ -235,9 +240,25 @@
         return max(0f, getScaledArrowHeight() - (arrowHeight - arrowVisibleHeight))
     }
 
+    /** Set whether the background should show the drop target */
+    fun showDropTarget(isDropTarget: Boolean) {
+        if (isShowingDropTarget == isDropTarget) {
+            return
+        }
+        isShowingDropTarget = isDropTarget
+        val strokeColor = if (isDropTarget) strokeColorDropTarget else strokeColor
+        val alpha = if (isDropTarget) DRAG_STROKE_ALPHA else strokeAlpha
+        strokePaint.color = strokeColor
+        strokePaint.alpha = alpha
+        invalidateSelf()
+    }
+
+    fun isShowingDropTarget() = isShowingDropTarget
+
     companion object {
         private const val DARK_THEME_STROKE_ALPHA = 51
         private const val LIGHT_THEME_STROKE_ALPHA = 41
+        private const val DRAG_STROKE_ALPHA = 255
         private const val DARK_THEME_SHADOW_ALPHA = 51
         private const val LIGHT_THEME_SHADOW_ALPHA = 25
     }
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
index 4e029e3..5ddbe03 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarController.java
@@ -33,7 +33,8 @@
 import android.os.SystemProperties;
 import android.util.ArrayMap;
 import android.util.Log;
-import android.widget.Toast;
+
+import androidx.annotation.NonNull;
 
 import com.android.launcher3.taskbar.TaskbarSharedState;
 import com.android.launcher3.taskbar.bubbles.stashing.BubbleStashController;
@@ -589,15 +590,24 @@
     }
 
     @Override
-    public void onDragItemOverBubbleBarDragZone(BubbleBarLocation location) {
-        //TODO(b/388894910): add meaningful implementation
-        MAIN_EXECUTOR.execute(() ->
-                Toast.makeText(mContext, "onDragItemOver " + location, Toast.LENGTH_SHORT).show());
+    public void onDragItemOverBubbleBarDragZone(@NonNull BubbleBarLocation bubbleBarLocation) {
+        MAIN_EXECUTOR.execute(() -> {
+            mBubbleBarViewController.onDragItemOverBubbleBarDragZone(bubbleBarLocation);
+            if (mBubbleBarViewController.isLocationUpdatedForDropTarget()) {
+                mBubbleBarLocationListener.onBubbleBarLocationAnimated(bubbleBarLocation);
+            }
+        });
     }
 
     @Override
     public void onItemDraggedOutsideBubbleBarDropZone() {
-
+        MAIN_EXECUTOR.execute(() -> {
+            if (mBubbleBarViewController.isLocationUpdatedForDropTarget()) {
+                BubbleBarLocation original = mBubbleBarViewController.getBubbleBarLocation();
+                mBubbleBarLocationListener.onBubbleBarLocationAnimated(original);
+            }
+            mBubbleBarViewController.onItemDraggedOutsideBubbleBarDropZone();
+        });
     }
 
     /** Notifies WMShell to show the expanded view. */
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
index c001123..d43ebe2 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarView.java
@@ -536,6 +536,16 @@
         return (float) (displayWidth - getWidth() - margin);
     }
 
+    /** Set whether the background should show the drop target */
+    public void showDropTarget(boolean isDropTarget) {
+        mBubbleBarBackground.showDropTarget(isDropTarget);
+    }
+
+    /** Returns whether the Bubble Bar is currently displaying a drop target. */
+    public boolean isShowingDropTarget() {
+        return mBubbleBarBackground.isShowingDropTarget();
+    }
+
     /**
      * Animate bubble bar to the given location transiently. Does not modify the layout or the value
      * returned by {@link #getBubbleBarLocation()}.
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
index 026f239..b90a5b0 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/BubbleBarViewController.java
@@ -131,12 +131,13 @@
     // Whether the bar is hidden when stashed
     private boolean mHiddenForStashed;
     private boolean mShouldShowEducation;
-
     public boolean mOverflowAdded;
+    private boolean mIsLocationUpdatedForDropTarget = false;
 
     private BubbleBarViewAnimator mBubbleBarViewAnimator;
     private final FrameLayout mBubbleBarContainer;
     private BubbleBarFlyoutController mBubbleBarFlyoutController;
+    private BubbleBarPinController mBubbleBarPinController;
     private TaskbarSharedState mTaskbarSharedState;
     private final TimeSource mTimeSource = System::currentTimeMillis;
     private final int mTaskbarTranslationDelta;
@@ -166,6 +167,7 @@
         mBubbleStashController = bubbleControllers.bubbleStashController;
         mBubbleBarController = bubbleControllers.bubbleBarController;
         mBubbleDragController = bubbleControllers.bubbleDragController;
+        mBubbleBarPinController = bubbleControllers.bubbleBarPinController;
         mTaskbarStashController = controllers.taskbarStashController;
         mTaskbarInsetsController = controllers.taskbarInsetsController;
         mBubbleBarFlyoutController = new BubbleBarFlyoutController(
@@ -274,7 +276,10 @@
 
             @Override
             public boolean isOnLeft() {
-                return mBarView.getBubbleBarLocation().isOnLeft(mBarView.isLayoutRtl());
+                boolean shouldRevertLocation =
+                        mBarView.isShowingDropTarget() && mIsLocationUpdatedForDropTarget;
+                boolean isOnLeft = mBarView.getBubbleBarLocation().isOnLeft(mBarView.isLayoutRtl());
+                return shouldRevertLocation != isOnLeft;
             }
 
             @Override
@@ -524,6 +529,61 @@
         mBarView.animateToBubbleBarLocation(bubbleBarLocation);
     }
 
+    /** Returns whether the Bubble Bar is currently displaying a drop target. */
+    public boolean isShowingDropTarget() {
+        return mBarView.isShowingDropTarget();
+    }
+
+    /**
+     * Notifies the controller that a drag event is over the Bubble Bar drop zone. The controller
+     * will display the appropriate drop target and enter drop target mode. The controller will also
+     * update the return value of {@link #isLocationUpdatedForDropTarget()} to true if location was
+     * updated.
+     */
+    public void onDragItemOverBubbleBarDragZone(@NonNull BubbleBarLocation bubbleBarLocation) {
+        mBarView.showDropTarget(/* isDropTarget = */ true);
+        mIsLocationUpdatedForDropTarget = getBubbleBarLocation() != bubbleBarLocation;
+        if (mIsLocationUpdatedForDropTarget) {
+            animateBubbleBarLocation(bubbleBarLocation);
+        }
+        if (!hasBubbles()) {
+            mBubbleBarPinController.showDropTarget(bubbleBarLocation);
+        }
+    }
+
+    /**
+     * Returns {@code true} if location was updated after most recent
+     * {@link #onDragItemOverBubbleBarDragZone}}.
+     */
+    public boolean isLocationUpdatedForDropTarget() {
+        return mIsLocationUpdatedForDropTarget;
+    }
+
+    /**
+     * Notifies the controller that the drag event is outside the Bubble Bar drop zone.
+     * This will hide the drop target zone if there are no bubbles or return the
+     * Bubble Bar to its original location. The controller will also exit drop target
+     * mode and reset the value returned from {@link #isLocationUpdatedForDropTarget()} to false.
+     */
+    public void onItemDraggedOutsideBubbleBarDropZone() {
+        mBarView.showDropTarget(/* isDropTarget = */ false);
+        if (mIsLocationUpdatedForDropTarget) {
+            animateBubbleBarLocation(getBubbleBarLocation());
+        }
+        mBubbleBarPinController.hideDropTarget();
+        mIsLocationUpdatedForDropTarget = false;
+    }
+
+    /**
+     * Notifies the controller that the drag has completed over the Bubble Bar drop zone.
+     * The controller will hide the drop target if there are no bubbles and exit drop target mode.
+     */
+    public void onItemDroppedInBubbleBarDragZone() {
+        mBarView.showDropTarget(/* isDropTarget = */ false);
+        mBubbleBarPinController.hideDropTarget();
+        mIsLocationUpdatedForDropTarget = false;
+    }
+
     /**
      * The bounds of the bubble bar.
      */
@@ -996,7 +1056,12 @@
         boolean isInApp = mTaskbarStashController.isInApp();
         // if this is the first bubble, animate to the initial state.
         if (mBarView.getBubbleChildCount() == 1 && !isUpdate) {
-            mBubbleBarViewAnimator.animateToInitialState(bubble, isInApp, isExpanding);
+            // If a drop target is visible and the first bubble is added, hide the empty drop target
+            if (mBarView.isShowingDropTarget()) {
+                mBubbleBarPinController.hideDropTarget();
+            }
+            mBubbleBarViewAnimator.animateToInitialState(bubble, isInApp, isExpanding,
+                    mBarView.isShowingDropTarget());
             return;
         }
         // if we're not stashed or we're in persistent taskbar, animate for collapsed state.
diff --git a/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt b/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt
index 745c689..30cfafe 100644
--- a/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimator.kt
@@ -365,7 +365,12 @@
     }
 
     /** Animates to the initial state of the bubble bar, when there are no previous bubbles. */
-    fun animateToInitialState(b: BubbleBarBubble, isInApp: Boolean, isExpanding: Boolean) {
+    fun animateToInitialState(
+        b: BubbleBarBubble,
+        isInApp: Boolean,
+        isExpanding: Boolean,
+        isDragging: Boolean = false,
+    ) {
         val bubbleView = b.view
         val animator = PhysicsAnimator.getInstance(bubbleView)
         if (animator.isRunning()) animator.cancel()
@@ -374,15 +379,12 @@
         // bubble bar to the handle if we're in an app.
         val showAnimation = buildBubbleBarSpringInAnimation()
         val hideAnimation =
-            if (isInApp && !isExpanding) {
+            if (isInApp && !isExpanding && !isDragging) {
                 buildBubbleBarToHandleAnimation()
             } else {
                 Runnable {
-                    moveToState(AnimatingBubble.State.ANIMATING_OUT)
-                    bubbleBarFlyoutController.collapseFlyout {
-                        onFlyoutRemoved()
-                        clearAnimatingBubble()
-                    }
+                    collapseFlyoutAndUpdateState()
+                    if (isDragging) return@Runnable
                     bubbleStashController.showBubbleBarImmediate()
                     bubbleStashController.updateTaskbarTouchRegion()
                 }
@@ -440,11 +442,7 @@
         // first bounce the bubble bar and show the flyout. Then hide the flyout.
         val showAnimation = buildBubbleBarBounceAnimation()
         val hideAnimation = Runnable {
-            moveToState(AnimatingBubble.State.ANIMATING_OUT)
-            bubbleBarFlyoutController.collapseFlyout {
-                onFlyoutRemoved()
-                clearAnimatingBubble()
-            }
+            collapseFlyoutAndUpdateState()
             bubbleStashController.showBubbleBarImmediate()
             bubbleStashController.updateTaskbarTouchRegion()
         }
@@ -454,6 +452,14 @@
         scheduler.postDelayed(FLYOUT_DELAY_MS, hideAnimation)
     }
 
+    private fun collapseFlyoutAndUpdateState() {
+        moveToState(AnimatingBubble.State.ANIMATING_OUT)
+        bubbleBarFlyoutController.collapseFlyout {
+            onFlyoutRemoved()
+            clearAnimatingBubble()
+        }
+    }
+
     /**
      * The bubble bar animation when it is collapsed is divided into 2 chained animations. The first
      * animation is a regular accelerate animation that moves the bubble bar upwards. When it ends
diff --git a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
index be0a339..783ec2c 100644
--- a/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
+++ b/quickstep/src/com/android/quickstep/LauncherBackAnimationController.java
@@ -514,7 +514,13 @@
 
     private void finishAnimation() {
         mLauncher.setPredictiveBackToHomeInProgress(false);
+        if (mBackTarget != null && mBackTarget.leash.isValid()) {
+            mBackTarget.leash.release();
+        }
         mBackTarget = null;
+        if (mLauncherTarget != null && mLauncherTarget.leash.isValid()) {
+            mLauncherTarget.leash.release();
+        }
         mLauncherTarget = null;
         mBackInProgress = false;
         mBackProgress = 0;
diff --git a/quickstep/src/com/android/quickstep/OverviewCommandHelper.kt b/quickstep/src/com/android/quickstep/OverviewCommandHelper.kt
index 42aa86e..afdb403 100644
--- a/quickstep/src/com/android/quickstep/OverviewCommandHelper.kt
+++ b/quickstep/src/com/android/quickstep/OverviewCommandHelper.kt
@@ -293,10 +293,6 @@
         val recentsView: RecentsView<*, *>? = recentsViewContainer?.getOverviewPanel()
         val deviceProfile = recentsViewContainer?.getDeviceProfile()
         val uiController = containerInterface.getTaskbarController()
-        val allowQuickSwitch =
-            uiController != null &&
-                deviceProfile != null &&
-                (deviceProfile.isTablet || deviceProfile.isTwoPanels)
 
         val focusedDisplayId = focusState.focusedDisplayId
         val focusedDisplayUIController: TaskbarUIController? =
@@ -322,26 +318,26 @@
 
         when (command.type) {
             HIDE -> {
-                if (!allowQuickSwitch) return true
+                if (uiController == null || deviceProfile?.isTablet == false) return true
                 keyboardTaskFocusIndex =
                     if (
                         enableAltTabKqsOnConnectedDisplays() && focusedDisplayUIController != null
                     ) {
                         focusedDisplayUIController.launchFocusedTask()
                     } else {
-                        uiController!!.launchFocusedTask()
+                        uiController.launchFocusedTask()
                     }
 
                 if (keyboardTaskFocusIndex == -1) return true
             }
             KEYBOARD_INPUT ->
-                if (allowQuickSwitch) {
+                if (uiController != null && deviceProfile?.isTablet == true) {
                     if (
                         enableAltTabKqsOnConnectedDisplays() && focusedDisplayUIController != null
                     ) {
                         focusedDisplayUIController.openQuickSwitchView()
                     } else {
-                        uiController!!.openQuickSwitchView()
+                        uiController.openQuickSwitchView()
                     }
                     return true
                 } else {
@@ -365,7 +361,11 @@
             TOGGLE -> {}
         }
 
-        recentsView?.setKeyboardTaskFocusIndex(keyboardTaskFocusIndex)
+        recentsView?.setKeyboardTaskFocusIndex(
+            recentsView.indexOfChild(recentsView.taskViews.elementAtOrNull(keyboardTaskFocusIndex))
+                ?: -1
+        )
+
         // Handle recents view focus when launching from home
         val animatorListener: Animator.AnimatorListener =
             object : AnimatorListenerAdapter() {
@@ -526,7 +526,7 @@
         // Stops requesting focused after first view gets focused.
         recentsView.getTaskViewAt(keyboardTaskFocusIndex).requestFocus() ||
             recentsView.nextTaskView.requestFocus() ||
-            recentsView.getFirstTaskView().requestFocus() ||
+            recentsView.firstTaskView.requestFocus() ||
             recentsView.requestFocus()
     }
 
diff --git a/quickstep/src/com/android/quickstep/TaskViewUtils.java b/quickstep/src/com/android/quickstep/TaskViewUtils.java
index 35a6e72..37c2d1c 100644
--- a/quickstep/src/com/android/quickstep/TaskViewUtils.java
+++ b/quickstep/src/com/android/quickstep/TaskViewUtils.java
@@ -38,6 +38,7 @@
 import static com.android.launcher3.QuickstepTransitionManager.SPLIT_LAUNCH_DURATION;
 import static com.android.launcher3.Utilities.getDescendantCoordRelativeToAncestor;
 import static com.android.launcher3.util.MultiPropertyFactory.MULTI_PROPERTY_VALUE;
+import static com.android.quickstep.BaseContainerInterface.getTaskDimension;
 import static com.android.quickstep.util.AnimUtils.clampToDuration;
 import static com.android.wm.shell.shared.TransitionUtil.TYPE_SPLIT_SCREEN_DIM_LAYER;
 
@@ -65,6 +66,7 @@
 import com.android.app.animation.Interpolators;
 import com.android.internal.jank.Cuj;
 import com.android.launcher3.DeviceProfile;
+import com.android.launcher3.Utilities;
 import com.android.launcher3.anim.AnimatedFloat;
 import com.android.launcher3.anim.AnimationSuccessListener;
 import com.android.launcher3.anim.AnimatorPlaybackController;
@@ -102,6 +104,11 @@
 
     private TaskViewUtils() {}
 
+    private static final Rect TEMP_THUMBNAIL_BOUNDS = new Rect();
+    private static final Rect TEMP_FULLSCREEN_BOUNDS = new Rect();
+    private static final PointF TEMP_TASK_DIMENSION = new PointF();
+    private static final PointF TEMP_PIVOT = new PointF();
+
     /**
      * Try to find a TaskView that corresponds with the component of the launched view.
      *
@@ -164,7 +171,7 @@
     public static <T extends Context & RecentsViewContainer & StatefulContainer<?>>
     void createRecentsWindowAnimator(
             @NonNull RecentsView<T, ?> recentsView,
-            @NonNull TaskView v,
+            @NonNull TaskView taskView,
             boolean skipViewChanges,
             @NonNull RemoteAnimationTarget[] appTargets,
             @NonNull RemoteAnimationTarget[] wallpaperTargets,
@@ -172,31 +179,31 @@
             @Nullable DepthController depthController,
             @Nullable TransitionInfo transitionInfo,
             PendingAnimation out) {
-        boolean isQuickSwitch = v.isEndQuickSwitchCuj();
-        v.setEndQuickSwitchCuj(false);
+        boolean isQuickSwitch = taskView.isEndQuickSwitchCuj();
+        taskView.setEndQuickSwitchCuj(false);
 
         final RemoteAnimationTargets targets =
                 new RemoteAnimationTargets(appTargets, wallpaperTargets, nonAppTargets,
                         MODE_OPENING);
         final RemoteAnimationTarget navBarTarget = targets.getNavBarRemoteAnimationTarget();
 
-        SurfaceTransactionApplier applier = new SurfaceTransactionApplier(v);
+        SurfaceTransactionApplier applier = new SurfaceTransactionApplier(taskView);
         targets.addReleaseCheck(applier);
 
         RemoteTargetHandle[] remoteTargetHandles;
         RemoteTargetHandle[] recentsViewHandles = recentsView.getRemoteTargetHandles();
-        if (v.isRunningTask() && recentsViewHandles != null) {
+        if (taskView.isRunningTask() && recentsViewHandles != null) {
             // Re-use existing handles
             remoteTargetHandles = recentsViewHandles;
         } else {
-            boolean forDesktop = v instanceof DesktopTaskView;
-            RemoteTargetGluer gluer = new RemoteTargetGluer(v.getContext(),
+            boolean forDesktop = taskView instanceof DesktopTaskView;
+            RemoteTargetGluer gluer = new RemoteTargetGluer(taskView.getContext(),
                     recentsView.getSizeStrategy(), targets, forDesktop);
             if (forDesktop) {
                 remoteTargetHandles = gluer.assignTargetsForDesktop(targets, transitionInfo);
-            } else if (v.containsMultipleTasks()) {
+            } else if (taskView.containsMultipleTasks()) {
                 remoteTargetHandles = gluer.assignTargetsForSplitScreen(targets,
-                        ((GroupedTaskView) v).getSplitBoundsConfig());
+                        ((GroupedTaskView) taskView).getSplitBoundsConfig());
             } else {
                 remoteTargetHandles = gluer.assignTargets(targets);
             }
@@ -210,8 +217,8 @@
             remoteTargetHandle.getTransformParams().setSyncTransactionApplier(applier);
         }
 
-        int taskIndex = recentsView.indexOfChild(v);
-        Context context = v.getContext();
+        int taskIndex = recentsView.indexOfChild(taskView);
+        Context context = taskView.getContext();
 
         T container = RecentsViewContainer.containerFromContext(context);
         DeviceProfile dp = container.getDeviceProfile();
@@ -219,11 +226,11 @@
         boolean parallaxCenterAndAdjacentTask =
                 !showAsGrid && taskIndex != recentsView.getCurrentPage();
         int taskRectTranslationPrimary = recentsView.getScrollOffset(taskIndex);
-        int taskRectTranslationSecondary = showAsGrid ? (int) v.getGridTranslationY() : 0;
+        int taskRectTranslationSecondary = showAsGrid ? (int) taskView.getGridTranslationY() : 0;
 
         RemoteTargetHandle[] topMostSimulators = null;
 
-        if (!v.isRunningTask()) {
+        if (!taskView.isRunningTask()) {
             // TVSs already initialized from the running task, no need to re-init
             for (RemoteTargetHandle targetHandle : remoteTargetHandles) {
                 TaskViewSimulator tvsLocal = targetHandle.getTaskViewSimulator();
@@ -237,13 +244,13 @@
                 tvsLocal.fullScreenProgress.value = 0;
                 tvsLocal.recentsViewScale.value = 1;
                 if (!enableGridOnlyOverview()) {
-                    tvsLocal.setIsGridTask(v.isGridTask());
+                    tvsLocal.setIsGridTask(taskView.isGridTask());
                 }
                 tvsLocal.getOrientationState().getOrientationHandler().set(tvsLocal,
                         TaskViewSimulator::setTaskRectTranslation, taskRectTranslationPrimary,
                         taskRectTranslationSecondary);
 
-                if (v instanceof DesktopTaskView) {
+                if (taskView instanceof DesktopTaskView) {
                     targetHandle.getTransformParams().setTargetAlpha(1f);
                 } else {
                     // Fade in the task during the initial 20% of the animation
@@ -260,8 +267,11 @@
             out.setFloat(tvsLocal.recentsViewScale,
                     AnimatedFloat.VALUE, tvsLocal.getFullScreenScale(),
                     TOUCH_RESPONSE);
-            out.setFloat(tvsLocal.recentsViewScroll, AnimatedFloat.VALUE, 0,
-                    TOUCH_RESPONSE);
+            if (!enableGridOnlyOverview()) {
+                out.setFloat(tvsLocal.recentsViewScroll, AnimatedFloat.VALUE, 0,
+                        TOUCH_RESPONSE);
+            }
+
             out.addListener(new AnimatorListenerAdapter() {
                 @Override
                 public void onAnimationStart(Animator animation) {
@@ -271,6 +281,18 @@
                         showTransaction.getTransaction().show(targets.apps[i].leash);
                     }
                     applier.scheduleApply(showTransaction);
+
+                    if (enableGridOnlyOverview()) {
+                        taskView.getThumbnailBounds(TEMP_THUMBNAIL_BOUNDS, /*relativeToDragLayer=*/
+                                true);
+                        getTaskDimension(context, container.getDeviceProfile(),
+                                TEMP_TASK_DIMENSION);
+                        TEMP_FULLSCREEN_BOUNDS.set(0, 0, (int) TEMP_TASK_DIMENSION.x,
+                                (int) TEMP_TASK_DIMENSION.y);
+                        Utilities.getPivotsForScalingRectToRect(TEMP_THUMBNAIL_BOUNDS,
+                                TEMP_FULLSCREEN_BOUNDS, TEMP_PIVOT);
+                        tvsLocal.setPivotOverride(TEMP_PIVOT);
+                    }
                 }
             });
             out.addOnFrameCallback(() -> {
@@ -321,7 +343,7 @@
 
         if (!skipViewChanges && parallaxCenterAndAdjacentTask && topMostSimulators != null
                 && topMostSimulators.length > 0) {
-            out.addFloat(v, VIEW_ALPHA, 1, 0, clampToProgress(LINEAR, 0.2f, 0.4f));
+            out.addFloat(taskView, VIEW_ALPHA, 1, 0, clampToProgress(LINEAR, 0.2f, 0.4f));
 
             RemoteTargetHandle[] simulatorCopies = topMostSimulators;
             for (RemoteTargetHandle handle : simulatorCopies) {
@@ -340,7 +362,7 @@
             // During animation we apply transformation on the thumbnailView (and not the rootView)
             // to follow the TaskViewSimulator. So the final matrix applied on the thumbnailView is:
             //    Mt K(0)` K(t) Mt`
-            View[] thumbnails = v.getSnapshotViews();
+            View[] thumbnails = taskView.getSnapshotViews();
 
             // In case simulator copies and thumbnail size do no match, ensure we get the lesser.
             // This ensures we do not create arrays with empty elements or attempt to references
diff --git a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
index 09e9c8b..b844079 100644
--- a/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
+++ b/quickstep/src/com/android/quickstep/util/TaskViewSimulator.java
@@ -97,6 +97,8 @@
     private final FullscreenDrawParams mCurrentFullscreenParams;
     public final AnimatedFloat taskPrimaryTranslation = new AnimatedFloat();
     public final AnimatedFloat taskSecondaryTranslation = new AnimatedFloat();
+    public final AnimatedFloat taskGridTranslationX = new AnimatedFloat();
+    public final AnimatedFloat taskGridTranslationY = new AnimatedFloat();
 
     // Carousel properties
     public final AnimatedFloat carouselScale = new AnimatedFloat();
@@ -445,6 +447,7 @@
                 taskPrimaryTranslation.value);
         mOrientationState.getOrientationHandler().setSecondary(mMatrix, MATRIX_POST_TRANSLATE,
                 taskSecondaryTranslation.value);
+        mMatrix.postTranslate(taskGridTranslationX.value, taskGridTranslationY.value);
 
         mMatrix.postScale(carouselScale.value, carouselScale.value,
                 mIsRecentsRtl ? mCarouselTaskSize.right : mCarouselTaskSize.left,
@@ -484,6 +487,8 @@
                 + " taskRect: " + mTaskRect
                 + " taskPrimaryT: " + taskPrimaryTranslation.value
                 + " taskSecondaryT: " + taskSecondaryTranslation.value
+                + " taskGridTranslationX: " + taskGridTranslationX.value
+                + " taskGridTranslationY: " + taskGridTranslationY.value
                 + " recentsPrimaryT: " + recentsViewPrimaryTranslation.value
                 + " recentsSecondaryT: " + recentsViewSecondaryTranslation.value
                 + " recentsScroll: " + recentsViewScroll.value
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 58300d2..a29d302 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -2013,7 +2013,7 @@
             }
             // If the list changed, maybe the focused task doesn't exist anymore.
             if (newFocusedTaskView == null) {
-                newFocusedTaskView = mUtils.getExpectedFocusedTask();
+                newFocusedTaskView = mUtils.getFirstNonDesktopTaskView();
             }
         }
         setFocusedTaskViewId(
@@ -2119,15 +2119,6 @@
         return mTaskViewCount;
     }
 
-    /**
-     * Transverse RecentsView children to calculate the amount of DesktopTaskViews.
-     *
-     * @return Number of children that are instances of DesktopTaskView
-     */
-    private int getDesktopTaskViewCount() {
-        return mUtils.getDesktopTaskViewCount();
-    }
-
     /** Counts {@link TaskView}s that are not {@link DesktopTaskView} instances. */
     public int getNonDesktopTaskViewCount() {
         return mUtils.getNonDesktopTaskViewCount();
@@ -2920,28 +2911,40 @@
         BaseState<?> endState = mSizeStrategy.stateFromGestureEndTarget(endTarget);
         if (endState.displayOverviewTasksAsGrid(mContainer.getDeviceProfile())) {
             TaskView runningTaskView = getRunningTaskView();
-            float runningTaskPrimaryGridTranslation = 0;
-            float runningTaskSecondaryGridTranslation = 0;
+            float runningTaskGridTranslationX = 0;
+            float runningTaskGridTranslationY = 0;
             if (runningTaskView != null) {
                 // Apply the grid translation to running task unless it's being snapped to
                 // and removes the current translation applied to the running task.
-                runningTaskPrimaryGridTranslation = runningTaskView.getGridTranslationX()
+                runningTaskGridTranslationX = runningTaskView.getGridTranslationX()
                         - runningTaskView.getNonGridTranslationX();
-                runningTaskSecondaryGridTranslation = runningTaskView.getGridTranslationY();
+                runningTaskGridTranslationY = runningTaskView.getGridTranslationY();
             }
             for (RemoteTargetHandle remoteTargetHandle : remoteTargetHandles) {
                 TaskViewSimulator tvs = remoteTargetHandle.getTaskViewSimulator();
                 if (animatorSet == null) {
                     setGridProgress(1);
-                    tvs.taskPrimaryTranslation.value = runningTaskPrimaryGridTranslation;
-                    tvs.taskSecondaryTranslation.value = runningTaskSecondaryGridTranslation;
+                    if (enableGridOnlyOverview()) {
+                        tvs.taskGridTranslationX.value = runningTaskGridTranslationX;
+                        tvs.taskGridTranslationY.value = runningTaskGridTranslationY;
+                    } else {
+                        tvs.taskPrimaryTranslation.value = runningTaskGridTranslationX;
+                        tvs.taskSecondaryTranslation.value = runningTaskGridTranslationY;
+                    }
                 } else {
                     animatorSet.play(ObjectAnimator.ofFloat(this, RECENTS_GRID_PROGRESS, 1));
-                    animatorSet.play(tvs.carouselScale.animateToValue(1));
-                    animatorSet.play(tvs.taskPrimaryTranslation.animateToValue(
-                            runningTaskPrimaryGridTranslation));
-                    animatorSet.play(tvs.taskSecondaryTranslation.animateToValue(
-                            runningTaskSecondaryGridTranslation));
+                    if (enableGridOnlyOverview()) {
+                        animatorSet.play(tvs.carouselScale.animateToValue(1));
+                        animatorSet.play(tvs.taskGridTranslationX.animateToValue(
+                                runningTaskGridTranslationX));
+                        animatorSet.play(tvs.taskGridTranslationY.animateToValue(
+                                runningTaskGridTranslationY));
+                    } else {
+                        animatorSet.play(tvs.taskPrimaryTranslation.animateToValue(
+                                runningTaskGridTranslationX));
+                        animatorSet.play(tvs.taskSecondaryTranslation.animateToValue(
+                                runningTaskGridTranslationY));
+                    }
                 }
             }
         }
@@ -3067,7 +3070,7 @@
             focusedTaskViewId = INVALID_TASK_ID;
         } else if (enableLargeDesktopWindowingTile()
                 && getRunningTaskView() instanceof DesktopTaskView) {
-            TaskView focusedTaskView = getTaskViewAt(getDesktopTaskViewCount());
+            TaskView focusedTaskView = mUtils.getFirstNonDesktopTaskView();
             focusedTaskViewId =
                     focusedTaskView != null ? focusedTaskView.getTaskViewId() : INVALID_TASK_ID;
         } else {
@@ -3494,8 +3497,13 @@
         final TaskView runningTask = getRunningTaskView();
         if (showAsGrid() && enableGridOnlyOverview() && runningTask != null) {
             runActionOnRemoteHandles(
-                    remoteTargetHandle -> remoteTargetHandle.getTaskViewSimulator()
-                            .taskSecondaryTranslation.value = runningTask.getGridTranslationY()
+                    remoteTargetHandle -> {
+                        remoteTargetHandle.getTaskViewSimulator().taskGridTranslationX.value =
+                                runningTask.getGridTranslationX()
+                                        - runningTask.getNonGridTranslationX();
+                        remoteTargetHandle.getTaskViewSimulator().taskGridTranslationY.value =
+                                runningTask.getGridTranslationY();
+                    }
             );
         }
 
@@ -3609,12 +3617,9 @@
         if (taskView.isRunningTask()) {
             anim.addOnFrameCallback(() -> {
                 if (!mEnableDrawingLiveTile) return;
-                runActionOnRemoteHandles(
-                        remoteTargetHandle -> remoteTargetHandle.getTaskViewSimulator()
-                                .taskSecondaryTranslation.value = getPagedOrientationHandler()
-                                .getSecondaryValue(taskView.getTranslationX(),
-                                        taskView.getTranslationY()
-                                ));
+                runActionOnRemoteHandles(remoteTargetHandle ->
+                        remoteTargetHandle.getTaskViewSimulator().taskSecondaryTranslation.value =
+                                taskView.getSecondaryDismissTranslationProperty().get(taskView));
                 redrawLiveTile();
             });
         }
@@ -3936,9 +3941,9 @@
         int distanceFromDismissedTask = 1;
         int slidingTranslation = 0;
         if (isSlidingTasks) {
-            int nextSnappedPage = isStagingFocusedTask
-                    ? indexOfChild(mUtils.getFirstSmallTaskView())
-                    : mUtils.getDesktopTaskViewCount();
+            int nextSnappedPage = indexOfChild(isStagingFocusedTask
+                    ? mUtils.getFirstSmallTaskView()
+                    : mUtils.getFirstNonDesktopTaskView());
             slidingTranslation = getPagedOrientationHandler().getPrimaryScroll(this)
                     - getScrollForPage(nextSnappedPage);
             slidingTranslation += mIsRtl ? newClearAllShortTotalWidthTranslation
@@ -3964,7 +3969,7 @@
                             Math.abs(i - dismissedIndex),
                             scrollDiff,
                             anim,
-                            splitTimings, i);
+                            splitTimings);
                     needsCurveUpdates = true;
                 }
             } else if (child instanceof TaskView taskView) {
@@ -4340,8 +4345,7 @@
             int indexDiff,
             int scrollDiffPerPage,
             PendingAnimation pendingAnimation,
-            SplitAnimationTimings splitTimings,
-            int index) {
+            SplitAnimationTimings splitTimings) {
         // No need to translate the AddDesktopButton on dismissing a TaskView, which should be
         // always at the right most position, even when dismissing the last TaskView.
         if (view instanceof AddDesktopButton) {
@@ -5663,7 +5667,7 @@
             anim.play(ObjectAnimator.ofFloat(this, FULLSCREEN_PROGRESS, 1));
             anim.addListener(new AnimatorListenerAdapter() {
                 @Override
-                public void onAnimationStart(@NonNull Animator animation, boolean isReverse) {
+                public void onAnimationStart(@NonNull Animator animation) {
                     taskView.getThumbnailBounds(mTempRect, /*relativeToDragLayer=*/true);
                     getTaskDimension(mContext, mContainer.getDeviceProfile(), mTempPointF);
                     Rect fullscreenBounds = new Rect(0, 0, (int) mTempPointF.x,
@@ -5685,6 +5689,18 @@
                                 });
                     }
                 }
+
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    // If live tile is not launching, reset the pivot applied above.
+                    if (!taskView.isRunningTask()) {
+                        runActionOnRemoteHandles(
+                                remoteTargetHandle -> {
+                                    remoteTargetHandle.getTaskViewSimulator().setPivotOverride(
+                                            null);
+                                });
+                    }
+                }
             });
         } else if (!showAsGrid) {
             // We are launching an adjacent task, so parallax the center and other adjacent task.
@@ -5793,10 +5809,12 @@
 
         mPendingAnimation = new PendingAnimation(duration);
         mPendingAnimation.add(anim);
-        runActionOnRemoteHandles(
-                remoteTargetHandle -> remoteTargetHandle.getTaskViewSimulator()
-                        .addOverviewToAppAnim(mPendingAnimation, interpolator));
-        mPendingAnimation.addOnFrameCallback(this::redrawLiveTile);
+        if (taskView.isRunningTask()) {
+            runActionOnRemoteHandles(
+                    remoteTargetHandle -> remoteTargetHandle.getTaskViewSimulator()
+                            .addOverviewToAppAnim(mPendingAnimation, interpolator));
+            mPendingAnimation.addOnFrameCallback(this::redrawLiveTile);
+        }
         mPendingAnimation.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationStart(Animator animation) {
@@ -6249,12 +6267,12 @@
     }
 
     @Override
-    protected int getChildVisibleSize(int index) {
-        final TaskView taskView = getTaskViewAt(index);
+    protected int getChildVisibleSize(int childIndex) {
+        final TaskView taskView = getTaskViewAt(childIndex);
         if (taskView == null) {
-            return super.getChildVisibleSize(index);
+            return super.getChildVisibleSize(childIndex);
         }
-        return (int) (super.getChildVisibleSize(index) * taskView.getSizeAdjustment(
+        return (int) (super.getChildVisibleSize(childIndex) * taskView.getSizeAdjustment(
                 showAsFullscreen()));
     }
 
@@ -6313,7 +6331,7 @@
      * Returns how many pixels the page is offset on the currently laid out dominant axis.
      */
     private int getUnclampedScrollOffset(int pageIndex) {
-        if (pageIndex == -1) {
+        if (pageIndex == INVALID_PAGE) {
             return 0;
         }
         // Don't dampen the scroll (due to overscroll) if the adjacent tasks are offscreen, so that
diff --git a/quickstep/src/com/android/quickstep/views/RecentsViewUtils.kt b/quickstep/src/com/android/quickstep/views/RecentsViewUtils.kt
index 94e8c03..f742ec3 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsViewUtils.kt
+++ b/quickstep/src/com/android/quickstep/views/RecentsViewUtils.kt
@@ -73,7 +73,7 @@
     }
 
     /** Counts [TaskView]s that are [DesktopTaskView] instances. */
-    fun getDesktopTaskViewCount(): Int = taskViews.count { it is DesktopTaskView }
+    private fun getDesktopTaskViewCount(): Int = taskViews.count { it is DesktopTaskView }
 
     /** Counts [TaskView]s that are not [DesktopTaskView] instances. */
     fun getNonDesktopTaskViewCount(): Int = taskViews.count { it !is DesktopTaskView }
@@ -91,7 +91,7 @@
         }
 
     /** Returns the expected focus task. */
-    fun getExpectedFocusedTask(): TaskView? =
+    fun getFirstNonDesktopTaskView(): TaskView? =
         if (enableLargeDesktopWindowingTile()) taskViews.firstOrNull { it !is DesktopTaskView }
         else taskViews.firstOrNull()
 
diff --git a/quickstep/tests/multivalentScreenshotTests/src/com/android/quickstep/task/thumbnail/TaskThumbnailViewScreenshotTest.kt b/quickstep/tests/multivalentScreenshotTests/src/com/android/quickstep/task/thumbnail/TaskThumbnailViewScreenshotTest.kt
index b9d2fed..6f0aaeb 100644
--- a/quickstep/tests/multivalentScreenshotTests/src/com/android/quickstep/task/thumbnail/TaskThumbnailViewScreenshotTest.kt
+++ b/quickstep/tests/multivalentScreenshotTests/src/com/android/quickstep/task/thumbnail/TaskThumbnailViewScreenshotTest.kt
@@ -16,10 +16,19 @@
 package com.android.quickstep.task.thumbnail
 
 import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Canvas
 import android.graphics.Color
+import android.graphics.Matrix
+import android.graphics.Paint
+import android.graphics.drawable.BitmapDrawable
 import android.view.LayoutInflater
+import android.view.Surface.ROTATION_0
+import androidx.core.graphics.set
 import com.android.launcher3.R
 import com.android.quickstep.task.thumbnail.TaskThumbnailUiState.BackgroundOnly
+import com.android.quickstep.task.thumbnail.TaskThumbnailUiState.Snapshot
+import com.android.quickstep.task.thumbnail.TaskThumbnailUiState.SnapshotSplash
 import com.android.quickstep.task.thumbnail.TaskThumbnailUiState.Uninitialized
 import com.google.android.apps.nexuslauncher.imagecomparison.goldenpathmanager.ViewScreenshotGoldenPathManager
 import org.junit.Rule
@@ -81,6 +90,96 @@
     }
 
     @Test
+    fun taskThumbnailView_liveTile_withoutHeader() {
+        screenshotRule.screenshotTest("taskThumbnailView_liveTile") { activity ->
+            activity.actionBar?.hide()
+            createTaskThumbnailView(activity).apply {
+                setState(TaskThumbnailUiState.LiveTile.WithoutHeader)
+            }
+        }
+    }
+
+    @Test
+    fun taskThumbnailView_image_withoutHeader() {
+        screenshotRule.screenshotTest("taskThumbnailView_image") { activity ->
+            activity.actionBar?.hide()
+            createTaskThumbnailView(activity).apply {
+                setState(
+                    SnapshotSplash(
+                        Snapshot.WithoutHeader(createBitmap(), ROTATION_0, Color.DKGRAY),
+                        null,
+                    )
+                )
+            }
+        }
+    }
+
+    @Test
+    fun taskThumbnailView_image_withoutHeader_withImageMatrix() {
+        screenshotRule.screenshotTest("taskThumbnailView_image_withMatrix") { activity ->
+            activity.actionBar?.hide()
+            createTaskThumbnailView(activity).apply {
+                val lessThanHeightMatchingAspectRatio = (VIEW_ENV_HEIGHT / 2) - 200
+                setState(
+                    SnapshotSplash(
+                        Snapshot.WithoutHeader(
+                            createBitmap(
+                                width = VIEW_ENV_WIDTH / 2,
+                                height = lessThanHeightMatchingAspectRatio,
+                            ),
+                            ROTATION_0,
+                            Color.DKGRAY,
+                        ),
+                        null,
+                    )
+                )
+                setImageMatrix(Matrix().apply { postScale(2f, 2f) })
+            }
+        }
+    }
+
+    @Test
+    fun taskThumbnailView_splash_withoutHeader() {
+        screenshotRule.screenshotTest("taskThumbnailView_partial_splash") { activity ->
+            activity.actionBar?.hide()
+            createTaskThumbnailView(activity).apply {
+                setState(
+                    SnapshotSplash(
+                        Snapshot.WithoutHeader(createBitmap(), ROTATION_0, Color.DKGRAY),
+                        BitmapDrawable(activity.resources, createSplash()),
+                    )
+                )
+                updateSplashAlpha(0.5f)
+            }
+        }
+    }
+
+    @Test
+    fun taskThumbnailView_splash_withoutHeader_withImageMatrix() {
+        screenshotRule.screenshotTest("taskThumbnailView_partial_splash_withMatrix") { activity ->
+            activity.actionBar?.hide()
+            createTaskThumbnailView(activity).apply {
+                val lessThanHeightMatchingAspectRatio = (VIEW_ENV_HEIGHT / 2) - 200
+                setState(
+                    SnapshotSplash(
+                        Snapshot.WithoutHeader(
+                            createBitmap(
+                                width = VIEW_ENV_WIDTH / 2,
+                                height = lessThanHeightMatchingAspectRatio,
+                            ),
+                            ROTATION_0,
+                            Color.DKGRAY,
+                        ),
+                        BitmapDrawable(activity.resources, createSplash()),
+                    )
+                )
+                setImageMatrix(Matrix().apply { postScale(2f, 2f) })
+                updateSplashAlpha(0.5f)
+            }
+        }
+    }
+
+    @Test
     fun taskThumbnailView_dimmed_tintAmount() {
         screenshotRule.screenshotTest("taskThumbnailView_dimmed_40") { activity ->
             activity.actionBar?.hide()
@@ -122,6 +221,27 @@
         return taskThumbnailView
     }
 
+    private fun createSplash() = createBitmap(width = 20, height = 20, rectColorRotation = 1)
+
+    private fun createBitmap(
+        width: Int = VIEW_ENV_WIDTH,
+        height: Int = VIEW_ENV_HEIGHT,
+        rectColorRotation: Int = 0,
+    ) =
+        Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888).apply {
+            Canvas(this).apply {
+                val paint = Paint()
+                paint.color = BITMAP_RECT_COLORS[rectColorRotation % 4]
+                drawRect(0f, 0f, width / 2f, height / 2f, paint)
+                paint.color = BITMAP_RECT_COLORS[(1 + rectColorRotation) % 4]
+                drawRect(width / 2f, 0f, width.toFloat(), height / 2f, paint)
+                paint.color = BITMAP_RECT_COLORS[(2 + rectColorRotation) % 4]
+                drawRect(0f, height / 2f, width / 2f, height.toFloat(), paint)
+                paint.color = BITMAP_RECT_COLORS[(3 + rectColorRotation) % 4]
+                drawRect(width / 2f, height / 2f, width.toFloat(), height.toFloat(), paint)
+            }
+        }
+
     companion object {
         @Parameters(name = "{0}")
         @JvmStatic
@@ -133,5 +253,8 @@
             )
 
         const val CORNER_RADIUS = 56f
+        val BITMAP_RECT_COLORS = listOf(Color.GREEN, Color.RED, Color.BLUE, Color.CYAN)
+        const val VIEW_ENV_WIDTH = 1440
+        const val VIEW_ENV_HEIGHT = 3120
     }
 }
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt
index 46b5659..a456fb9 100644
--- a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/bubbles/animation/BubbleBarViewAnimatorTest.kt
@@ -60,6 +60,7 @@
 import org.mockito.kotlin.atLeastOnce
 import org.mockito.kotlin.eq
 import org.mockito.kotlin.mock
+import org.mockito.kotlin.never
 import org.mockito.kotlin.verify
 import org.mockito.kotlin.whenever
 
@@ -573,6 +574,71 @@
     }
 
     @Test
+    fun animateToInitialState_whileDragging_inApp() {
+        setUpBubbleBar()
+        setUpBubbleStashController()
+        whenever(bubbleStashController.bubbleBarTranslationY)
+            .thenReturn(BAR_TRANSLATION_Y_FOR_TASKBAR)
+
+        val handle = View(context)
+        val handleAnimator = PhysicsAnimator.getInstance(handle)
+        whenever(bubbleStashController.getStashedHandlePhysicsAnimator()).thenReturn(handleAnimator)
+
+        val barAnimator = PhysicsAnimator.getInstance(bubbleBarView)
+
+        var notifiedBubbleBarVisible = false
+        val onBubbleBarVisible = Runnable { notifiedBubbleBarVisible = true }
+        val animator =
+            BubbleBarViewAnimator(
+                bubbleBarView,
+                bubbleStashController,
+                flyoutController,
+                bubbleBarParentViewController,
+                onExpanded = emptyRunnable,
+                onBubbleBarVisible = onBubbleBarVisible,
+                animatorScheduler,
+            )
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {
+            bubbleBarView.visibility = INVISIBLE
+            animator.animateToInitialState(
+                bubble,
+                isInApp = true,
+                isExpanding = false,
+                isDragging = true,
+            )
+        }
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        barAnimator.assertIsNotRunning()
+        assertThat(animator.isAnimating).isTrue()
+        assertThat(bubbleBarView.alpha).isEqualTo(1)
+        assertThat(bubbleBarView.translationY).isEqualTo(BAR_TRANSLATION_Y_FOR_TASKBAR)
+        assertThat(bubbleBarParentViewController.timesInvoked).isEqualTo(1)
+        waitForFlyoutToShow()
+
+        assertThat(animatorScheduler.delayedBlock).isNotNull()
+        InstrumentationRegistry.getInstrumentation().runOnMainSync(animatorScheduler.delayedBlock!!)
+
+        waitForFlyoutToHide()
+
+        InstrumentationRegistry.getInstrumentation().runOnMainSync {}
+        PhysicsAnimatorTestUtils.blockUntilAnimationsEnd(DynamicAnimation.TRANSLATION_Y)
+
+        InstrumentationRegistry.getInstrumentation().waitForIdleSync()
+        assertThat(bubbleBarParentViewController.timesInvoked).isEqualTo(2)
+        assertThat(animator.isAnimating).isFalse()
+        assertThat(bubbleBarView.alpha).isEqualTo(1)
+        assertThat(handle.translationY).isEqualTo(0)
+        assertThat(bubbleBarView.visibility).isEqualTo(VISIBLE)
+        assertThat(notifiedBubbleBarVisible).isTrue()
+
+        verify(bubbleStashController, never()).stashBubbleBarImmediate()
+    }
+
+    @Test
     fun animateToInitialState_inApp_autoExpanding() {
         setUpBubbleBar()
         setUpBubbleStashController()
diff --git a/quickstep/tests/src/com/android/launcher3/statehandlers/DesktopVisibilityControllerTest.kt b/quickstep/tests/src/com/android/launcher3/statehandlers/DesktopVisibilityControllerTest.kt
new file mode 100644
index 0000000..4b8f2a2
--- /dev/null
+++ b/quickstep/tests/src/com/android/launcher3/statehandlers/DesktopVisibilityControllerTest.kt
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2025 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.statehandlers
+
+import android.content.Context
+import android.platform.test.annotations.EnableFlags
+import android.platform.test.flag.junit.SetFlagsRule
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.SmallTest
+import com.android.dx.mockito.inline.extended.ExtendedMockito.mockitoSession
+import com.android.launcher3.util.DaggerSingletonTracker
+import com.android.quickstep.SystemUiProxy
+import com.android.window.flags.Flags.FLAG_ENABLE_MULTIPLE_DESKTOPS_BACKEND
+import com.android.window.flags.Flags.FLAG_ENABLE_MULTIPLE_DESKTOPS_FRONTEND
+import com.android.wm.shell.shared.desktopmode.DesktopModeStatus
+import org.junit.After
+import org.junit.Assert.assertFalse
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.mockito.kotlin.mock
+import org.mockito.kotlin.whenever
+import org.mockito.quality.Strictness
+
+/**
+ * Tests the behavior of [DesktopVisibilityController] in regards to multiple desktops and multiple
+ * displays.
+ */
+@SmallTest
+@RunWith(AndroidJUnit4::class)
+class DesktopVisibilityControllerTest {
+
+    @get:Rule val setFlagsRule = SetFlagsRule()
+
+    private val mockitoSession =
+        mockitoSession()
+            .strictness(Strictness.LENIENT)
+            .mockStatic(DesktopModeStatus::class.java)
+            .startMocking()
+
+    private val context = mock<Context>()
+    private val systemUiProxy = mock<SystemUiProxy>()
+    private val lifeCycleTracker = mock<DaggerSingletonTracker>()
+    private lateinit var desktopVisibilityController: DesktopVisibilityController
+
+    @Before
+    fun setUp() {
+        whenever(context.resources).thenReturn(mock())
+        whenever(DesktopModeStatus.enableMultipleDesktops(context)).thenReturn(true)
+        desktopVisibilityController =
+            DesktopVisibilityController(context, systemUiProxy, lifeCycleTracker)
+    }
+
+    @After
+    fun tearDown() {
+        mockitoSession.finishMocking()
+    }
+
+    @Test
+    @EnableFlags(FLAG_ENABLE_MULTIPLE_DESKTOPS_BACKEND, FLAG_ENABLE_MULTIPLE_DESKTOPS_FRONTEND)
+    fun noCrashWhenCheckingNonExistentDisplay() {
+        assertFalse(desktopVisibilityController.isInDesktopMode(displayId = 500))
+        assertFalse(desktopVisibilityController.isInDesktopModeAndNotInOverview(displayId = 300))
+    }
+}
diff --git a/res/values-lt/strings.xml b/res/values-lt/strings.xml
index bd792ac..1a4a3f2 100644
--- a/res/values-lt/strings.xml
+++ b/res/values-lt/strings.xml
@@ -28,7 +28,7 @@
     <string name="shortcut_not_available" msgid="2536503539825726397">"Sparčiojo klavišo negalima naudoti"</string>
     <string name="home_screen" msgid="5629429142036709174">"Pagrindinis"</string>
     <string name="set_default_home_app" msgid="5808906607627586381">"Nustatykite „<xliff:g id="LAUNCHER_NAME">%1$s</xliff:g>“ kaip numatytąją pagrindinę programą skiltyje „Nustatymai“"</string>
-    <string name="recent_task_option_split_screen" msgid="6690461455618725183">"Išskaidyto ekrano režimas"</string>
+    <string name="recent_task_option_split_screen" msgid="6690461455618725183">"Išskaidytas ekranas"</string>
     <string name="split_app_info_accessibility" msgid="5475288491241414932">"Programos „%1$s“ informacija"</string>
     <string name="split_app_usage_settings" msgid="7214375263347964093">"„%1$s“ naudojimo nustatymai"</string>
     <string name="new_window_option_taskbar" msgid="6448780542727767211">"Naujas langas"</string>
diff --git a/res/values-or/strings.xml b/res/values-or/strings.xml
index 3031259..46aadc0 100644
--- a/res/values-or/strings.xml
+++ b/res/values-or/strings.xml
@@ -63,7 +63,7 @@
     <string name="widgets_full_sheet_search_bar_hint" msgid="8484659090860596457">"ସନ୍ଧାନ କରନ୍ତୁ"</string>
     <string name="widgets_full_sheet_cancel_button_description" msgid="5766167035728653605">"ସନ୍ଧାନ ବାକ୍ସରୁ ଟେକ୍ସଟ୍ ଖାଲି କରନ୍ତୁ"</string>
     <string name="no_widgets_available" msgid="4337693382501046170">"ୱିଜେଟ୍ ଏବଂ ସର୍ଟକଟଗୁଡ଼ିକ ଉପଲବ୍ଧ ନାହିଁ"</string>
-    <string name="no_search_results" msgid="3787956167293097509">"କୌଣସି ୱିଜେଟ୍ କିମ୍ବା ସର୍ଟକଟ୍ ମିଳିଲା ନାହିଁ"</string>
+    <string name="no_search_results" msgid="3787956167293097509">"କୌଣସି ୱିଜେଟ କିମ୍ବା ସର୍ଟକଟ ମିଳିଲା ନାହିଁ"</string>
     <string name="widgets_full_sheet_personal_tab" msgid="2743540105607120182">"ବ୍ୟକ୍ତିଗତ"</string>
     <string name="widgets_full_sheet_work_tab" msgid="3767150027110633765">"ୱାର୍କ"</string>
     <string name="widget_category_conversations" msgid="8894438636213590446">"ବାର୍ତ୍ତାଳାପଗୁଡ଼ିକ"</string>
diff --git a/res/values-pa/strings.xml b/res/values-pa/strings.xml
index c15e2e9..17ecb78 100644
--- a/res/values-pa/strings.xml
+++ b/res/values-pa/strings.xml
@@ -94,7 +94,7 @@
     <string name="all_apps_button_work_label" msgid="7270707118948892488">"ਕਾਰਜ-ਸਥਾਨ ਸੰਬੰਧੀ ਐਪਾਂ ਦੀ ਸੂਚੀ"</string>
     <string name="remove_drop_target_label" msgid="7812859488053230776">"ਹਟਾਓ"</string>
     <string name="uninstall_drop_target_label" msgid="4722034217958379417">"ਅਣਸਥਾਪਤ ਕਰੋ"</string>
-    <string name="app_info_drop_target_label" msgid="692894985365717661">"ਐਪ ਜਾਣਕਾਰੀ"</string>
+    <string name="app_info_drop_target_label" msgid="692894985365717661">"ਐਪ ਸੰਬੰਧੀ ਜਾਣਕਾਰੀ"</string>
     <string name="install_private_system_shortcut_label" msgid="1616889277073184841">"ਪ੍ਰਾਈਵੇਟ ਵਜੋਂ ਸਥਾਪਤ ਕਰੋ"</string>
     <string name="uninstall_private_system_shortcut_label" msgid="8423460530441627982">"ਐਪ ਅਣਸਥਾਪਤ ਕਰੋ"</string>
     <string name="install_drop_target_label" msgid="2539096853673231757">"ਸਥਾਪਤ ਕਰੋ"</string>
diff --git a/res/values-te/strings.xml b/res/values-te/strings.xml
index b6563b0..4145fb6 100644
--- a/res/values-te/strings.xml
+++ b/res/values-te/strings.xml
@@ -46,14 +46,14 @@
     <string name="widget_accessible_dims_format" msgid="3640149169885301790">"%1$d వెడల్పు X %2$d ఎత్తు"</string>
     <string name="widget_preview_context_description" msgid="9045841361655787574">"<xliff:g id="WIDGET_NAME">%1$s</xliff:g> విడ్జెట్"</string>
     <string name="widget_preview_name_and_dims_content_description" msgid="8489038126122831595">"<xliff:g id="WIDGET_NAME">%1$s</xliff:g> విడ్జెట్, %2$d వెడల్పు %3$d ఎత్తు ఉండాలి"</string>
-    <string name="add_item_request_drag_hint" msgid="8730547755622776606">"విడ్జెట్‌ను మొదటి స్క్రీన్‌లో తిప్పడానికి దాన్ని తాకి, &amp; నొక్కి పట్టుకోండి"</string>
+    <string name="add_item_request_drag_hint" msgid="8730547755622776606">"విడ్జెట్‌ను మొదటి స్క్రీన్‌లో అటు, ఇటు కదపడానికి దాన్ని తాకి, నొక్కి పట్టుకోండి"</string>
     <string name="add_to_home_screen" msgid="9168649446635919791">"మొదటి స్క్రీన్‌కు జోడించండి"</string>
     <string name="added_to_home_screen_accessibility_text" msgid="4451545765448884415">"మొదటి స్క్రీన్‌కు <xliff:g id="WIDGET_NAME">%1$s</xliff:g> విడ్జెట్ జోడించబడింది"</string>
     <string name="suggested_widgets_header_title" msgid="1844314680798145222">"సూచనలు"</string>
     <string name="productivity_widget_recommendation_category_label" msgid="3811812719618323750">"నిత్యావసరాలు"</string>
     <string name="news_widget_recommendation_category_label" msgid="6756167867113741310">"వార్తలు &amp; మ్యాగజైన్లు"</string>
     <string name="entertainment_widget_recommendation_category_label" msgid="3973107268630717874">"వినోదం"</string>
-    <string name="social_widget_recommendation_category_label" msgid="689147679536384717">"సామాజికం"</string>
+    <string name="social_widget_recommendation_category_label" msgid="689147679536384717">"సోషల్ మీడియా"</string>
     <string name="others_widget_recommendation_category_label" msgid="5555987036267226245">"మీ కోసం సూచించినవి"</string>
     <string name="widget_picker_right_pane_accessibility_title" msgid="1673313931455067502">"కుడి వైపున <xliff:g id="SELECTED_HEADER">%1$s</xliff:g> విడ్జెట్‌లు, ఎడమ వైపున సెర్చ్, ఇతర ఆప్షన్‌లు"</string>
     <string name="widgets_count" msgid="6467746476364652096">"{count,plural, =1{# విడ్జెట్}other{# విడ్జెట్‌లు}}"</string>
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index c2d6df5..870e6d6 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -85,6 +85,7 @@
 import java.util.Collections;
 import java.util.List;
 import java.util.Objects;
+import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.stream.Collectors;
 
 import javax.inject.Inject;
@@ -252,7 +253,7 @@
 
     public Point defaultWallpaperSize;
 
-    private final ArrayList<OnIDPChangeListener> mChangeListeners = new ArrayList<>();
+    private final List<OnIDPChangeListener> mChangeListeners = new CopyOnWriteArrayList<>();
 
     @Inject
     InvariantDeviceProfile(
diff --git a/src/com/android/launcher3/LauncherAppState.java b/src/com/android/launcher3/LauncherAppState.java
index 71013c3..bf2ad92 100644
--- a/src/com/android/launcher3/LauncherAppState.java
+++ b/src/com/android/launcher3/LauncherAppState.java
@@ -16,54 +16,32 @@
 
 package com.android.launcher3;
 
-import static android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_RESOURCE_UPDATED;
-import static android.content.Context.RECEIVER_EXPORTED;
-
-import static com.android.launcher3.Flags.enableSmartspaceRemovalToggle;
-import static com.android.launcher3.model.LoaderTask.SMARTSPACE_ON_HOME_SCREEN;
-import static com.android.launcher3.util.Executors.MODEL_EXECUTOR;
-import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
-import static com.android.launcher3.util.SettingsCache.NOTIFICATION_BADGING_URI;
-import static com.android.launcher3.util.SettingsCache.PRIVATE_SPACE_HIDE_WHEN_LOCKED_URI;
-
-import android.content.ComponentName;
 import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
-import android.content.pm.LauncherApps;
-import android.content.pm.LauncherApps.ArchiveCompatibilityParams;
 import android.util.Log;
 
 import androidx.annotation.Nullable;
-import androidx.core.os.BuildCompat;
 
+import com.android.launcher3.dagger.LauncherComponentProvider;
 import com.android.launcher3.graphics.ThemeManager;
-import com.android.launcher3.graphics.ThemeManager.ThemeChangeListener;
 import com.android.launcher3.icons.IconCache;
 import com.android.launcher3.icons.IconProvider;
 import com.android.launcher3.icons.LauncherIconProvider;
-import com.android.launcher3.icons.LauncherIcons;
-import com.android.launcher3.model.ModelLauncherCallbacks;
+import com.android.launcher3.model.ModelInitializer;
 import com.android.launcher3.model.WidgetsFilterDataProvider;
-import com.android.launcher3.notification.NotificationListener;
 import com.android.launcher3.pm.InstallSessionHelper;
-import com.android.launcher3.pm.InstallSessionTracker;
 import com.android.launcher3.pm.UserCache;
-import com.android.launcher3.util.LockedUserState;
 import com.android.launcher3.util.MainThreadInitializedObject;
 import com.android.launcher3.util.PackageManagerHelper;
 import com.android.launcher3.util.Preconditions;
 import com.android.launcher3.util.RunnableList;
 import com.android.launcher3.util.SafeCloseable;
 import com.android.launcher3.util.SettingsCache;
-import com.android.launcher3.util.SimpleBroadcastReceiver;
 import com.android.launcher3.util.TraceHelper;
 import com.android.launcher3.widget.custom.CustomWidgetManager;
 
 public class LauncherAppState implements SafeCloseable {
 
     public static final String TAG = "LauncherAppState";
-    public static final String ACTION_FORCE_ROLOAD = "force-reload-launcher";
 
     // We do not need any synchronization for this variable as its only written on UI thread.
     public static final MainThreadInitializedObject<LauncherAppState> INSTANCE =
@@ -94,82 +72,21 @@
 
         mIsSafeModeEnabled = TraceHelper.allowIpcs("isSafeMode",
                 () -> context.getPackageManager().isSafeMode());
-        mInvariantDeviceProfile.addOnChangeListener(modelPropertiesChanged -> {
-            if (modelPropertiesChanged) {
-                refreshAndReloadLauncher();
-            }
-        });
 
-        ThemeChangeListener themeChangeListener = this::refreshAndReloadLauncher;
-        ThemeManager.INSTANCE.get(context).addChangeListener(themeChangeListener);
-        mOnTerminateCallback.add(() ->
-                ThemeManager.INSTANCE.get(context).removeChangeListener(themeChangeListener));
-
-        ModelLauncherCallbacks callbacks = mModel.newModelCallbacks();
-        LauncherApps launcherApps = mContext.getSystemService(LauncherApps.class);
-        launcherApps.registerCallback(callbacks);
-        mOnTerminateCallback.add(() ->
-                mContext.getSystemService(LauncherApps.class).unregisterCallback(callbacks));
-
-        if (BuildCompat.isAtLeastV() && Flags.enableSupportForArchiving()) {
-            ArchiveCompatibilityParams params = new ArchiveCompatibilityParams();
-            params.setEnableUnarchivalConfirmation(false);
-            params.setEnableIconOverlay(!Flags.useNewIconForArchivedApps());
-            launcherApps.setArchiveCompatibility(params);
-        }
-
-        SimpleBroadcastReceiver modelChangeReceiver =
-                new SimpleBroadcastReceiver(context, UI_HELPER_EXECUTOR, mModel::onBroadcastIntent);
-        modelChangeReceiver.register(
-                ACTION_DEVICE_POLICY_RESOURCE_UPDATED);
-        if (BuildConfig.IS_STUDIO_BUILD) {
-            modelChangeReceiver.register(RECEIVER_EXPORTED, ACTION_FORCE_ROLOAD);
-        }
-        mOnTerminateCallback.add(() -> modelChangeReceiver.unregisterReceiverSafely());
-
-        SafeCloseable userChangeListener = UserCache.INSTANCE.get(mContext)
-                .addUserEventListener(mModel::onUserEvent);
-        mOnTerminateCallback.add(userChangeListener::close);
-
-        if (enableSmartspaceRemovalToggle()) {
-            OnSharedPreferenceChangeListener firstPagePinnedItemListener =
-                    new OnSharedPreferenceChangeListener() {
-                        @Override
-                        public void onSharedPreferenceChanged(
-                                SharedPreferences sharedPreferences, String key) {
-                            if (SMARTSPACE_ON_HOME_SCREEN.equals(key)) {
-                                mModel.forceReload();
-                            }
-                        }
-                    };
-            LauncherPrefs.getPrefs(mContext).registerOnSharedPreferenceChangeListener(
-                    firstPagePinnedItemListener);
-            mOnTerminateCallback.add(() -> LauncherPrefs.getPrefs(mContext)
-                    .unregisterOnSharedPreferenceChangeListener(firstPagePinnedItemListener));
-        }
-
-        LockedUserState.get(context).runOnUserUnlocked(() -> {
-            CustomWidgetManager cwm = CustomWidgetManager.INSTANCE.get(mContext);
-            mOnTerminateCallback.add(cwm.addWidgetRefreshCallback(mModel::rebindCallbacks)::close);
-
-            SafeCloseable iconChangeTracker = mIconProvider.registerIconChangeListener(
-                    mModel::onAppIconChanged, MODEL_EXECUTOR.getHandler());
-            mOnTerminateCallback.add(iconChangeTracker::close);
-
-            InstallSessionTracker installSessionTracker =
-                    InstallSessionHelper.INSTANCE.get(context).registerInstallTracker(callbacks);
-            mOnTerminateCallback.add(installSessionTracker::unregister);
-        });
-
-        // Register an observer to rebind the notification listener when dots are re-enabled.
-        SettingsCache settingsCache = SettingsCache.INSTANCE.get(mContext);
-        SettingsCache.OnChangeListener notificationLister = this::onNotificationSettingsChanged;
-        settingsCache.register(NOTIFICATION_BADGING_URI, notificationLister);
-        onNotificationSettingsChanged(settingsCache.getValue(NOTIFICATION_BADGING_URI));
-        mOnTerminateCallback.add(() ->
-                settingsCache.unregister(NOTIFICATION_BADGING_URI, notificationLister));
-        // Register an observer to notify Launcher about Private Space settings toggle.
-        registerPrivateSpaceHideWhenLockListener(settingsCache);
+        ModelInitializer initializer = new ModelInitializer(
+                context,
+                LauncherComponentProvider.get(context).getIconPool(),
+                mIconCache,
+                mInvariantDeviceProfile,
+                ThemeManager.INSTANCE.get(context),
+                UserCache.INSTANCE.get(context),
+                SettingsCache.INSTANCE.get(context),
+                mIconProvider,
+                CustomWidgetManager.INSTANCE.get(context),
+                InstallSessionHelper.INSTANCE.get(context),
+                closeable -> mOnTerminateCallback.add(closeable::close)
+        );
+        initializer.initialize(mModel);
     }
 
     public LauncherAppState(Context context, @Nullable String iconCacheFileName) {
@@ -186,32 +103,6 @@
         mOnTerminateCallback.add(mModel::destroy);
     }
 
-    private void onNotificationSettingsChanged(boolean areNotificationDotsEnabled) {
-        if (areNotificationDotsEnabled) {
-            NotificationListener.requestRebind(new ComponentName(
-                    mContext, NotificationListener.class));
-        }
-    }
-
-    private void registerPrivateSpaceHideWhenLockListener(SettingsCache settingsCache) {
-        SettingsCache.OnChangeListener psHideWhenLockChangedListener =
-                this::onPrivateSpaceHideWhenLockChanged;
-        settingsCache.register(PRIVATE_SPACE_HIDE_WHEN_LOCKED_URI, psHideWhenLockChangedListener);
-        mOnTerminateCallback.add(() -> settingsCache.unregister(PRIVATE_SPACE_HIDE_WHEN_LOCKED_URI,
-                psHideWhenLockChangedListener));
-    }
-
-    private void onPrivateSpaceHideWhenLockChanged(boolean isPrivateSpaceHideOnLockEnabled) {
-        mModel.forceReload();
-    }
-
-    private void refreshAndReloadLauncher() {
-        LauncherIcons.clearPool(mContext);
-        mIconCache.updateIconParams(
-                mInvariantDeviceProfile.fillResIconDpi, mInvariantDeviceProfile.iconBitmapSize);
-        mModel.forceReload();
-    }
-
     /**
      * Call from Application.onTerminate(), which is not guaranteed to ever be called.
      */
diff --git a/src/com/android/launcher3/LauncherModel.kt b/src/com/android/launcher3/LauncherModel.kt
index 185629b..6e4276d 100644
--- a/src/com/android/launcher3/LauncherModel.kt
+++ b/src/com/android/launcher3/LauncherModel.kt
@@ -15,13 +15,11 @@
  */
 package com.android.launcher3
 
-import android.app.admin.DevicePolicyManager
 import android.content.Context
 import android.content.Intent
 import android.content.pm.ShortcutInfo
 import android.os.UserHandle
 import android.text.TextUtils
-import android.util.Log
 import android.util.Pair
 import androidx.annotation.WorkerThread
 import com.android.launcher3.celllayout.CellPosMapper
@@ -47,7 +45,6 @@
 import com.android.launcher3.model.data.WorkspaceItemInfo
 import com.android.launcher3.pm.UserCache
 import com.android.launcher3.shortcuts.ShortcutRequest
-import com.android.launcher3.testing.shared.TestProtocol.sDebugTracing
 import com.android.launcher3.util.Executors.MAIN_EXECUTOR
 import com.android.launcher3.util.Executors.MODEL_EXECUTOR
 import com.android.launcher3.util.PackageManagerHelper
@@ -173,15 +170,8 @@
         }
     }
 
-    fun onBroadcastIntent(intent: Intent) {
-        if (DEBUG_RECEIVER || sDebugTracing) Log.d(TAG, "onReceive intent=$intent")
-        when (intent.action) {
-            LauncherAppState.ACTION_FORCE_ROLOAD ->
-                // If we have changed locale we need to clear out the labels in all apps/workspace.
-                forceReload()
-            DevicePolicyManager.ACTION_DEVICE_POLICY_RESOURCE_UPDATED ->
-                enqueueModelUpdateTask(ReloadStringCacheTask(this.modelDelegate))
-        }
+    fun reloadStringCache() {
+        enqueueModelUpdateTask(ReloadStringCacheTask(this.modelDelegate))
     }
 
     /**
diff --git a/src/com/android/launcher3/graphics/ThemeManager.kt b/src/com/android/launcher3/graphics/ThemeManager.kt
index 4a0ff8c..de85460 100644
--- a/src/com/android/launcher3/graphics/ThemeManager.kt
+++ b/src/com/android/launcher3/graphics/ThemeManager.kt
@@ -19,6 +19,7 @@
 import android.content.Context
 import android.content.res.Resources
 import com.android.launcher3.EncryptionType
+import com.android.launcher3.Item
 import com.android.launcher3.LauncherPrefChangeListener
 import com.android.launcher3.LauncherPrefs
 import com.android.launcher3.LauncherPrefs.Companion.backedUpItem
@@ -38,11 +39,12 @@
 
 /** Centralized class for managing Launcher icon theming */
 @LauncherAppSingleton
-open class ThemeManager
+class ThemeManager
 @Inject
 constructor(
-    @ApplicationContext protected val context: Context,
-    protected val prefs: LauncherPrefs,
+    @ApplicationContext private val context: Context,
+    private val prefs: LauncherPrefs,
+    private val iconControllerFactory: IconControllerFactory,
     lifecycle: DaggerSingletonTracker,
 ) {
 
@@ -72,21 +74,21 @@
         val receiver = SimpleBroadcastReceiver(context, MAIN_EXECUTOR) { verifyIconState() }
         receiver.registerPkgActions("android", ACTION_OVERLAY_CHANGED)
 
-        val prefListener = LauncherPrefChangeListener { key ->
-            when (key) {
-                KEY_THEMED_ICONS,
-                KEY_ICON_SHAPE -> verifyIconState()
-            }
-        }
-        prefs.addListener(prefListener, THEMED_ICONS, PREF_ICON_SHAPE)
+        val keys = (iconControllerFactory.prefKeys + PREF_ICON_SHAPE)
 
+        val keysArray = keys.toTypedArray()
+        val prefKeySet = keys.map { it.sharedPrefKey }
+        val prefListener = LauncherPrefChangeListener { key ->
+            if (prefKeySet.contains(key)) verifyIconState()
+        }
+        prefs.addListener(prefListener, *keysArray)
         lifecycle.addCloseable {
             receiver.unregisterReceiverSafely()
-            prefs.removeListener(prefListener)
+            prefs.removeListener(prefListener, *keysArray)
         }
     }
 
-    protected fun verifyIconState() {
+    private fun verifyIconState() {
         val newState = parseIconState(iconState)
         if (newState == iconState) return
         iconState = newState
@@ -126,17 +128,13 @@
         return IconState(
             iconMask = iconMask,
             folderShapeMask = folderShapeMask,
-            themeController = createThemeController(),
+            themeController = iconControllerFactory.createThemeController(),
             iconScale = shapeModel?.iconScale ?: 1f,
             iconShape = iconShape,
             folderShape = folderShape,
         )
     }
 
-    protected open fun createThemeController(): IconThemeController? {
-        return if (isMonoThemeEnabled) MONO_THEME_CONTROLLER else null
-    }
-
     data class IconState(
         val iconMask: String,
         val folderShapeMask: String,
@@ -154,6 +152,15 @@
         fun onThemeChanged()
     }
 
+    open class IconControllerFactory @Inject constructor(protected val prefs: LauncherPrefs) {
+
+        open val prefKeys: List<Item> = listOf(THEMED_ICONS)
+
+        open fun createThemeController(): IconThemeController? {
+            return if (prefs.get(THEMED_ICONS)) MONO_THEME_CONTROLLER else null
+        }
+    }
+
     companion object {
 
         @JvmField val INSTANCE = DaggerSingletonObject(LauncherAppComponent::getThemeManager)
diff --git a/src/com/android/launcher3/model/ModelInitializer.kt b/src/com/android/launcher3/model/ModelInitializer.kt
new file mode 100644
index 0000000..69a320a
--- /dev/null
+++ b/src/com/android/launcher3/model/ModelInitializer.kt
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2025 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.model
+
+import android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_RESOURCE_UPDATED
+import android.content.ComponentName
+import android.content.Context
+import android.content.SharedPreferences
+import android.content.pm.LauncherApps
+import android.content.pm.LauncherApps.ArchiveCompatibilityParams
+import com.android.launcher3.BuildConfig
+import com.android.launcher3.Flags
+import com.android.launcher3.InvariantDeviceProfile
+import com.android.launcher3.InvariantDeviceProfile.OnIDPChangeListener
+import com.android.launcher3.LauncherModel
+import com.android.launcher3.LauncherPrefs.Companion.getPrefs
+import com.android.launcher3.Utilities
+import com.android.launcher3.dagger.ApplicationContext
+import com.android.launcher3.graphics.ThemeManager
+import com.android.launcher3.graphics.ThemeManager.ThemeChangeListener
+import com.android.launcher3.icons.IconCache
+import com.android.launcher3.icons.LauncherIconProvider
+import com.android.launcher3.icons.LauncherIcons.IconPool
+import com.android.launcher3.notification.NotificationListener
+import com.android.launcher3.pm.InstallSessionHelper
+import com.android.launcher3.pm.UserCache
+import com.android.launcher3.util.Executors.MODEL_EXECUTOR
+import com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR
+import com.android.launcher3.util.SafeCloseable
+import com.android.launcher3.util.SettingsCache
+import com.android.launcher3.util.SettingsCache.NOTIFICATION_BADGING_URI
+import com.android.launcher3.util.SettingsCache.PRIVATE_SPACE_HIDE_WHEN_LOCKED_URI
+import com.android.launcher3.util.SimpleBroadcastReceiver
+import com.android.launcher3.widget.custom.CustomWidgetManager
+import java.util.function.Consumer
+
+/** Utility class for initializing all model callbacks */
+class ModelInitializer(
+    @ApplicationContext private val context: Context,
+    private val iconPool: IconPool,
+    private val iconCache: IconCache,
+    private val idp: InvariantDeviceProfile,
+    private val themeManager: ThemeManager,
+    private val userCache: UserCache,
+    private val settingsCache: SettingsCache,
+    private val iconProvider: LauncherIconProvider,
+    private val customWidgetManager: CustomWidgetManager,
+    private val installSessionHelper: InstallSessionHelper,
+    private val closeActions: Consumer<SafeCloseable>,
+) {
+
+    fun initialize(model: LauncherModel) {
+        fun refreshAndReloadLauncher() {
+            iconPool.clear()
+            iconCache.updateIconParams(idp.fillResIconDpi, idp.iconBitmapSize)
+            model.forceReload()
+        }
+
+        // IDP changes
+        val idpChangeListener = OnIDPChangeListener { modelChanged ->
+            if (modelChanged) refreshAndReloadLauncher()
+        }
+        idp.addOnChangeListener(idpChangeListener)
+        closeActions.accept { idp.removeOnChangeListener(idpChangeListener) }
+
+        // Theme changes
+        val themeChangeListener = ThemeChangeListener { refreshAndReloadLauncher() }
+        themeManager.addChangeListener(themeChangeListener)
+        closeActions.accept { themeManager.removeChangeListener(themeChangeListener) }
+
+        // System changes
+        val modelCallbacks = model.newModelCallbacks()
+        val launcherApps = context.getSystemService(LauncherApps::class.java)!!
+        launcherApps.registerCallback(modelCallbacks)
+        closeActions.accept { launcherApps.unregisterCallback(modelCallbacks) }
+
+        if (Utilities.ATLEAST_V && Flags.enableSupportForArchiving()) {
+            launcherApps.setArchiveCompatibility(
+                ArchiveCompatibilityParams().apply {
+                    setEnableUnarchivalConfirmation(false)
+                    setEnableIconOverlay(!Flags.useNewIconForArchivedApps())
+                }
+            )
+        }
+
+        // Device profile policy changes
+        val dpUpdateReceiver =
+            SimpleBroadcastReceiver(context, UI_HELPER_EXECUTOR) { model.reloadStringCache() }
+        dpUpdateReceiver.register(ACTION_DEVICE_POLICY_RESOURCE_UPDATED)
+        closeActions.accept { dpUpdateReceiver.unregisterReceiverSafely() }
+
+        // Development helper
+        if (BuildConfig.IS_STUDIO_BUILD) {
+            val reloadReceiver =
+                SimpleBroadcastReceiver(context, UI_HELPER_EXECUTOR) { model.forceReload() }
+            reloadReceiver.register(Context.RECEIVER_EXPORTED, ACTION_FORCE_RELOAD)
+            closeActions.accept { reloadReceiver.unregisterReceiverSafely() }
+        }
+
+        // User changes
+        closeActions.accept(userCache.addUserEventListener(model::onUserEvent))
+
+        // Private space settings changes
+        val psSettingsListener = SettingsCache.OnChangeListener { model.forceReload() }
+        settingsCache.register(PRIVATE_SPACE_HIDE_WHEN_LOCKED_URI, psSettingsListener)
+        closeActions.accept {
+            settingsCache.unregister(PRIVATE_SPACE_HIDE_WHEN_LOCKED_URI, psSettingsListener)
+        }
+
+        // Notification dots changes
+        val notificationChanges =
+            SettingsCache.OnChangeListener { dotsEnabled ->
+                if (dotsEnabled)
+                    NotificationListener.requestRebind(
+                        ComponentName(context, NotificationListener::class.java)
+                    )
+            }
+        settingsCache.register(NOTIFICATION_BADGING_URI, notificationChanges)
+        notificationChanges.onSettingsChanged(settingsCache.getValue(NOTIFICATION_BADGING_URI))
+        closeActions.accept {
+            settingsCache.unregister(NOTIFICATION_BADGING_URI, notificationChanges)
+        }
+
+        // removable smartspace
+        if (Flags.enableSmartspaceRemovalToggle()) {
+            val smartSpacePrefChanges =
+                SharedPreferences.OnSharedPreferenceChangeListener { _, key ->
+                    if (LoaderTask.SMARTSPACE_ON_HOME_SCREEN == key) model.forceReload()
+                }
+            getPrefs(context).registerOnSharedPreferenceChangeListener(smartSpacePrefChanges)
+            closeActions.accept {
+                getPrefs(context).unregisterOnSharedPreferenceChangeListener(smartSpacePrefChanges)
+            }
+        }
+
+        // Custom widgets
+        closeActions.accept(customWidgetManager.addWidgetRefreshCallback(model::rebindCallbacks))
+
+        // Icon changes
+        closeActions.accept(
+            iconProvider.registerIconChangeListener(model::onAppIconChanged, MODEL_EXECUTOR.handler)
+        )
+
+        // Install session changes
+        closeActions.accept(installSessionHelper.registerInstallTracker(modelCallbacks))
+    }
+
+    companion object {
+        private const val ACTION_FORCE_RELOAD = "force-reload-launcher"
+    }
+}
diff --git a/src/com/android/launcher3/pm/InstallSessionTracker.java b/src/com/android/launcher3/pm/InstallSessionTracker.java
index b9c928c..7451ce2 100644
--- a/src/com/android/launcher3/pm/InstallSessionTracker.java
+++ b/src/com/android/launcher3/pm/InstallSessionTracker.java
@@ -34,13 +34,15 @@
 
 import com.android.launcher3.Flags;
 import com.android.launcher3.util.PackageUserKey;
+import com.android.launcher3.util.SafeCloseable;
 
 import java.lang.ref.WeakReference;
 import java.util.Objects;
 
 @SuppressWarnings("NewApi")
 @WorkerThread
-public class InstallSessionTracker extends PackageInstaller.SessionCallback {
+public class InstallSessionTracker extends PackageInstaller.SessionCallback implements
+        SafeCloseable {
 
     public static final String TAG = "InstallSessionTracker";
 
@@ -196,7 +198,8 @@
         }
     }
 
-    public void unregister() {
+    @Override
+    public void close() {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
             mInstaller.unregisterSessionCallback(this);
         } else {
diff --git a/src/com/android/launcher3/popup/PopupPopulator.java b/src/com/android/launcher3/popup/PopupPopulator.java
index b748011..bc5064d 100644
--- a/src/com/android/launcher3/popup/PopupPopulator.java
+++ b/src/com/android/launcher3/popup/PopupPopulator.java
@@ -110,13 +110,16 @@
     public static <T extends Context & ActivityContext> Runnable createUpdateRunnable(
             final T context,
             final ItemInfo originalInfo,
-            final Handler uiHandler, final PopupContainerWithArrow container,
-            final List<DeepShortcutView> shortcutViews) {
+            final Handler uiHandler,
+            final PopupContainerWithArrow container,
+            final List<DeepShortcutView> shortcutViews
+    ) {
         final ComponentName activity = originalInfo.getTargetComponent();
         final UserHandle user = originalInfo.user;
+        final String targetPackage = originalInfo.getTargetPackage();
         return () -> {
             ApplicationInfoWrapper infoWrapper =
-                    new ApplicationInfoWrapper(context, originalInfo.getTargetPackage(), user);
+                    new ApplicationInfoWrapper(context, targetPackage, user);
             List<ShortcutInfo> shortcuts = new ShortcutRequest(context, user)
                     .withContainer(activity)
                     .query(ShortcutRequest.PUBLISHED);
diff --git a/src/com/android/launcher3/widget/picker/OWNERS b/src/com/android/launcher3/widget/picker/OWNERS
index 6aabbfa..991193f 100644
--- a/src/com/android/launcher3/widget/picker/OWNERS
+++ b/src/com/android/launcher3/widget/picker/OWNERS
@@ -6,7 +6,6 @@
 #
 
 # Widget Picker OWNERS
-zakcohen@google.com
 shamalip@google.com
 wvk@google.com
 
diff --git a/tests/multivalentTests/src/com/android/launcher3/AbstractDeviceProfileTest.kt b/tests/multivalentTests/src/com/android/launcher3/AbstractDeviceProfileTest.kt
index 9d42e1b..8cdf380 100644
--- a/tests/multivalentTests/src/com/android/launcher3/AbstractDeviceProfileTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/AbstractDeviceProfileTest.kt
@@ -294,6 +294,8 @@
         gridName: String? = GRID_NAME.defaultValue,
     ) {
         setFlagsRule.setFlags(true, Flags.FLAG_ENABLE_TWOLINE_TOGGLE)
+        // TODO: re-enable as part of b/396211437
+        setFlagsRule.setFlags(false, Flags.FLAG_ENABLE_LAUNCHER_ICON_SHAPES)
         val windowsBounds = perDisplayBoundsCache[displayInfo]!!
         val realBounds = windowsBounds[rotation]
         whenever(windowManagerProxy.getDisplayInfo(any())).thenReturn(displayInfo)
diff --git a/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt b/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt
index 7a403e1..a55d64b 100644
--- a/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/model/WorkspaceItemProcessorTest.kt
@@ -454,7 +454,7 @@
         assertThat(mAllDeepShortcuts).isEmpty()
         verify(mockCursor)
             .markDeleted(
-                "Pinned shortcut not found from request. package=pkg, user=UserHandle{0}",
+                "Pinned shortcut not found from request. package=pkg, user=$mUserHandle",
                 "shortcut_not_found",
             )
     }
@@ -513,7 +513,7 @@
         verify(mockCursor, times(0)).checkAndAddItem(any(), any(), anyOrNull())
         verify(mockCursor)
             .markDeleted(
-                "Pinned shortcut not found from request. package=pkg, user=UserHandle{0}",
+                "Pinned shortcut not found from request. package=pkg, user=$mUserHandle",
                 "shortcut_not_found",
             )
     }
@@ -533,7 +533,7 @@
                 whenever(disabledMessage).thenReturn("")
                 whenever(disabledReason).thenReturn(0)
                 whenever(persons).thenReturn(EMPTY_PERSON_ARRAY)
-                whenever(userHandle).thenReturn(Process.myUserHandle())
+                whenever(userHandle).thenReturn(mUserHandle)
             }
         mIconRequestInfos = mutableListOf()
         // Make sure shortcuts map has expected key from expected package
@@ -565,7 +565,7 @@
         mockBgDataModel = mock<BgDataModel>()
         mockCursor =
             mock<LoaderCursor>().apply {
-                user = UserHandle(0)
+                user = mUserHandle
                 itemType = ITEM_TYPE_FOLDER
                 id = 1
                 container = 100
diff --git a/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt b/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt
index 15a9964..23c1da9 100644
--- a/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt
+++ b/tests/multivalentTests/src/com/android/launcher3/pm/InstallSessionTrackerTest.kt
@@ -219,7 +219,7 @@
             .whenever(launcherApps)
             .unregisterPackageInstallerSessionCallback(installSessionTracker)
         // When
-        installSessionTracker.unregister()
+        installSessionTracker.close()
         // Then
         verify(launcherApps).unregisterPackageInstallerSessionCallback(installSessionTracker)
     }
diff --git a/tests/src/com/android/launcher3/nonquickstep/DeviceProfileDumpTest.kt b/tests/src/com/android/launcher3/nonquickstep/DeviceProfileDumpTest.kt
index f6e45a3..05cf926 100644
--- a/tests/src/com/android/launcher3/nonquickstep/DeviceProfileDumpTest.kt
+++ b/tests/src/com/android/launcher3/nonquickstep/DeviceProfileDumpTest.kt
@@ -40,7 +40,6 @@
             Flags.FLAG_ENABLE_SCALING_REVEAL_HOME_ANIMATION,
         )
         setFlagsRule.setFlags(false, Flags.FLAG_ONE_GRID_SPECS)
-        setFlagsRule.setFlags(false, Flags.FLAG_ENABLE_LAUNCHER_ICON_SHAPES)
     }
 
     @Test
diff --git a/tests/src/com/android/launcher3/widget/picker/OWNERS b/tests/src/com/android/launcher3/widget/picker/OWNERS
index 775b0c7..716ab90 100644
--- a/tests/src/com/android/launcher3/widget/picker/OWNERS
+++ b/tests/src/com/android/launcher3/widget/picker/OWNERS
@@ -5,7 +5,6 @@
 #
 
 # Widget Picker OWNERS
-zakcohen@google.com
 shamalip@google.com
 wvk@google.com