diff --git a/aconfig/Android.bp b/aconfig/Android.bp
index 5413601..bca7494 100644
--- a/aconfig/Android.bp
+++ b/aconfig/Android.bp
@@ -20,7 +20,7 @@
 aconfig_declarations {
     name: "com_android_launcher3_flags",
     package: "com.android.launcher3",
-    container: "system",
+    container: "system_ext",
     srcs: ["**/*.aconfig"],
 }
 
diff --git a/aconfig/launcher.aconfig b/aconfig/launcher.aconfig
index c3fb150..06809d7 100644
--- a/aconfig/launcher.aconfig
+++ b/aconfig/launcher.aconfig
@@ -1,5 +1,5 @@
 package: "com.android.launcher3"
-container: "system"
+container: "system_ext"
 
 flag {
     name: "enable_expanding_pause_work_button"
diff --git a/aconfig/launcher_overview.aconfig b/aconfig/launcher_overview.aconfig
index 5f082db..30b0d40 100644
--- a/aconfig/launcher_overview.aconfig
+++ b/aconfig/launcher_overview.aconfig
@@ -1,5 +1,5 @@
 package: "com.android.launcher3"
-container: "system"
+container: "system_ext"
 
 flag {
     name: "enable_grid_only_overview"
diff --git a/aconfig/launcher_search.aconfig b/aconfig/launcher_search.aconfig
index 72f654e..b98eee6 100644
--- a/aconfig/launcher_search.aconfig
+++ b/aconfig/launcher_search.aconfig
@@ -1,5 +1,5 @@
 package: "com.android.launcher3"
-container: "system"
+container: "system_ext"
 
 flag {
     name: "enable_private_space"
diff --git a/quickstep/AndroidManifest.xml b/quickstep/AndroidManifest.xml
index 201c5f6..5ca7143 100644
--- a/quickstep/AndroidManifest.xml
+++ b/quickstep/AndroidManifest.xml
@@ -119,6 +119,7 @@
             android:autoRemoveFromRecents="true"
             android:excludeFromRecents="true"
             android:theme="@style/GestureTutorialActivity"
+            android:label="@string/gesture_tutorial_title"
             android:exported="true"
             android:configChanges="orientation">
             <intent-filter>
diff --git a/quickstep/res/values/strings.xml b/quickstep/res/values/strings.xml
index 324ea31..0474000 100644
--- a/quickstep/res/values/strings.xml
+++ b/quickstep/res/values/strings.xml
@@ -98,6 +98,9 @@
     <!-- content description for hotseat items -->
     <string name="hotseat_prediction_content_description">Predicted app: <xliff:g id="title" example="Chrome">%1$s</xliff:g></string>
 
+    <!-- Title of the Gesture Navigation Tutorial page [CHAR LIMIT=NONE] -->
+    <string name="gesture_tutorial_title">Gesture Navigation Tutorial</string>
+
     <!-- Title of prompt shown before the gesture navigation tutorial to users who need to rotate their screen. [CHAR LIMIT=100] -->
     <string name="gesture_tutorial_rotation_prompt_title">Rotate your device</string>
     <!-- Prompt shown before the gesture navigation tutorial to users who need to rotate their screen to begin. [CHAR LIMIT=100] -->
diff --git a/quickstep/src/com/android/launcher3/taskbar/ManageWindowsTaskbarShortcut.kt b/quickstep/src/com/android/launcher3/taskbar/ManageWindowsTaskbarShortcut.kt
index 82fd415..bfd93dd 100644
--- a/quickstep/src/com/android/launcher3/taskbar/ManageWindowsTaskbarShortcut.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/ManageWindowsTaskbarShortcut.kt
@@ -70,7 +70,7 @@
             val packageDesktopTasks =
                 (desktopTask?.tasks ?: emptyList()).filter(isTargetPackageTask)
             val nonDesktopPackageTasks =
-                tasks.filter { isTargetPackageTask(it.task1) }.map { it.task1 }
+                tasks.flatMap { it.tasks }.filter { isTargetPackageTask(it) }
 
             // Add tasks from the fetched tasks, deduplicating by task ID
             val packageTasks =
diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt b/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt
index e654fe8..4afabde 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarRecentAppsController.kt
@@ -266,8 +266,8 @@
     }
 
     private fun updateOrderedRunningTaskIds(): MutableList<Int> {
-        val desktopTaskAsList = getOrderedAndWrappedDesktopTasks()
-        val desktopTaskIds = desktopTaskAsList.map { it.task1.key.id }
+        val desktopTasksAsList = getOrderedAndWrappedDesktopTasks().flatMap { it.tasks }
+        val desktopTaskIds = desktopTasksAsList.map { it.key.id }
         var newOrder =
             orderedRunningTaskIds
                 .filter { it in desktopTaskIds } // Only keep the tasks that are still running
@@ -383,11 +383,13 @@
                 itemInfo
             } else {
                 val foundTask =
-                    groupTasks.find { task ->
-                        task.task1.key.packageName == itemInfo.targetPackage &&
-                            task.task1.key.userId == itemInfo.user.identifier
-                    } ?: return@map itemInfo
-                TaskItemInfo(foundTask.task1.key.id, itemInfo as WorkspaceItemInfo)
+                    groupTasks
+                        .flatMap { it.tasks }
+                        .find { task ->
+                            task.key.packageName == itemInfo.targetPackage &&
+                                task.key.userId == itemInfo.user.identifier
+                        } ?: return@map itemInfo
+                TaskItemInfo(foundTask.key.id, itemInfo as WorkspaceItemInfo)
             }
         }
 
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 26957db..b5d9936 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -3230,7 +3230,7 @@
         Map<TaskView, Float> gridTranslations = new HashMap<>();
 
         TaskView lastLargeTaskView = mUtils.getLastLargeTaskView();
-        int focusedTaskShift = 0;
+        int focusedTaskViewShift = 0;
         int largeTaskWidthAndSpacing = 0;
         int snappedTaskRowWidth = 0;
         int snappedPage = isKeyboardTaskFocusPending() ? mKeyboardTaskFocusIndex : getNextPage();
@@ -3275,7 +3275,7 @@
                     topRowWidth += taskWidthAndSpacing;
                     bottomRowWidth += taskWidthAndSpacing;
                 }
-                gridTranslation += focusedTaskShift;
+                gridTranslation += focusedTaskViewShift;
                 gridTranslation += mIsRtl ? taskWidthAndSpacing : -taskWidthAndSpacing;
 
                 // Center view vertically in case it's from different orientation.
@@ -3294,9 +3294,12 @@
                     gridTranslation +=
                             mIsRtl ? largeTaskWidthAndSpacing : -largeTaskWidthAndSpacing;
                 } else {
-                    // For task before the focused task, accumulate the width and spacing to
-                    // calculate the distance focused task need to shift.
-                    focusedTaskShift += mIsRtl ? taskWidthAndSpacing : -taskWidthAndSpacing;
+                    // For TaskViews before the new focused TaskView, accumulate the width and
+                    // spacing to calculate the distance the new focused TaskView needs to shift.
+                    // This could happen for example after multiple times of dismissing the
+                    // focused TaskView, the triggered rebalance might set a non-first TaskView
+                    // inside `mChildren` as the new focused TaskView.
+                    focusedTaskViewShift += mIsRtl ? taskWidthAndSpacing : -taskWidthAndSpacing;
                 }
                 int taskViewId = taskView.getTaskViewId();
 
@@ -3367,7 +3370,7 @@
         if (snappedTaskView != null) {
             snappedTaskNonGridScrollAdjustment = snappedTaskView.getScrollAdjustment(
                     /*gridEnabled=*/false);
-            snappedTaskGridTranslationX = gridTranslations.get(snappedTaskView);
+            snappedTaskGridTranslationX = gridTranslations.getOrDefault(snappedTaskView, 0f);
         }
 
         // Use the accumulated translation of the row containing the last task.
@@ -3448,14 +3451,22 @@
 
         for (TaskView taskView : getTaskViews()) {
             taskView.setGridTranslationX(
-                    gridTranslations.get(taskView) - snappedTaskGridTranslationX
+                    gridTranslations.getOrDefault(taskView, 0f) - snappedTaskGridTranslationX
                             + snappedTaskNonGridScrollAdjustment);
         }
 
         if (mAddDesktopButton != null) {
-            mAddDesktopButton.setTranslationX(
-                    gridTranslations.get(getFirstTaskView()) - snappedTaskGridTranslationX
-                            + snappedTaskNonGridScrollAdjustment);
+            TaskView firstTaskView = getFirstTaskView();
+            float translationX = 0f;
+            if (firstTaskView != null) {
+                translationX += firstTaskView.getGridTranslationX();
+            }
+            if (focusedTaskViewShift != 0) {
+                // If the focused task is inserted between `firstTaskView` and
+                // `mAddDesktopButton`, shift `mAddDesktopButton` to accommodate.
+                translationX += largeTaskWidthAndSpacing;
+            }
+            mAddDesktopButton.setTranslationX(translationX);
         }
 
         final TaskView runningTask = getRunningTaskView();
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarRecentAppsControllerTest.kt b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarRecentAppsControllerTest.kt
index 0bae42c..8d8e62e 100644
--- a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarRecentAppsControllerTest.kt
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarRecentAppsControllerTest.kt
@@ -91,6 +91,9 @@
     private var canShowRunningAndRecentAppsAtInit = true
     private var recentTasksChangedListener: RecentTasksChangedListener? = null
 
+    val recentShownTasks: List<Task>
+        get() = recentAppsController.shownTasks.flatMap { it.tasks }
+
     @Before
     fun setUp() {
         super.setup()
@@ -354,9 +357,8 @@
         val hotseatItem1 = newHotseatItems[0] as TaskItemInfo
         assertThat(hotseatItem1.targetPackage).isEqualTo(HOTSEAT_PACKAGE_1)
 
-        // The other task of the same package is not in shownTasks
-        val shownTasks = recentAppsController.shownTasks.map { it.task1 }
-        assertThat(shownTasks).isEmpty()
+        // The other task of the same package is not in recentShownTasks
+        assertThat(recentShownTasks).isEmpty()
     }
 
     @Test
@@ -439,8 +441,7 @@
             runningTasks = listOf(task1, task2),
             recentTaskPackages = emptyList(),
         )
-        val shownTasks = recentAppsController.shownTasks.map { it.task1 }
-        assertThat(shownTasks).containsExactlyElementsIn(listOf(task1, task2))
+        assertThat(recentShownTasks).containsExactlyElementsIn(listOf(task1, task2))
     }
 
     @Test
@@ -535,8 +536,7 @@
             recentTaskPackages = emptyList(),
         )
 
-        val shownTasks = recentAppsController.shownTasks.map { it.task1 }
-        assertThat(shownTasks).isEqualTo(listOf(task1, task2))
+        assertThat(recentShownTasks).isEqualTo(listOf(task1, task2))
     }
 
     /**
@@ -554,10 +554,9 @@
             recentTaskPackages = emptyList(),
         )
 
-        // Assert that shownTasks contains only one instance of the app
-        val shownTasks = recentAppsController.shownTasks.map { it.task1 }
-        assertThat(shownTasks).hasSize(1)
-        assertThat(shownTasks[0].key.packageName).isEqualTo(RUNNING_APP_PACKAGE_1)
+        // Assert that recentShownTasks contains only one instance of the app
+        assertThat(recentShownTasks).hasSize(1)
+        assertThat(recentShownTasks[0].key.packageName).isEqualTo(RUNNING_APP_PACKAGE_1)
     }
 
     @Test
@@ -839,8 +838,7 @@
             runningTasks = runningTasks,
             recentTaskPackages = emptyList(),
         )
-        val shownTasks = recentAppsController.shownTasks.map { it.task1 }
-        assertThat(shownTasks).contains(runningTask)
+        assertThat(recentShownTasks).contains(runningTask)
         assertThat(recentAppsController.runningTaskIds).containsExactlyElementsIn(listOf(1))
     }
 
diff --git a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarViewTestUtil.kt b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarViewTestUtil.kt
index f2dcf77..e7f3523 100644
--- a/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarViewTestUtil.kt
+++ b/quickstep/tests/multivalentTests/src/com/android/launcher3/taskbar/TaskbarViewTestUtil.kt
@@ -99,9 +99,9 @@
     /** Verifies that recents from [startIndex] have IDs that match [expectedIds] in order. */
     fun hasRecentsOrder(startIndex: Int, expectedIds: List<Int>) {
         val actualIds =
-            view.iconViews.slice(startIndex..<startIndex + expectedIds.size).map {
+            view.iconViews.slice(startIndex..<startIndex + expectedIds.size).flatMap {
                 assertThat(it.tag).isInstanceOf(GroupTask::class.java)
-                (it.tag as? GroupTask)?.task1?.key?.id
+                (it.tag as GroupTask).tasks.map { task -> task.key.id }
             }
         assertThat(actualIds).containsExactlyElementsIn(expectedIds).inOrder()
     }
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsOverviewDesktop.kt b/quickstep/tests/src/com/android/quickstep/TaplTestsOverviewDesktop.kt
index b744039..75947ab 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsOverviewDesktop.kt
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsOverviewDesktop.kt
@@ -122,25 +122,25 @@
         val desktop = moveTaskToDesktop(TEST_ACTIVITY_EXTRA)
         var overview = desktop.switchToOverview()
 
-        // Open focused task and go back to Overview to validate whether it has adjacent tasks in
-        // its both sides (grid task on left and desktop tasks at its right side)
-        val focusedTaskOpened = overview.getTestActivityTask(TEST_ACTIVITY_2).open()
+        // Open first fullscreen task and go back to Overview to validate whether it has adjacent
+        // tasks in its both sides (grid task on left and desktop tasks at its right side)
+        val firstFullscreenTaskOpened = overview.getTestActivityTask(TEST_ACTIVITY_2).open()
 
-        // Fling to desktop task and dismiss the focused task to check repositioning of
+        // Fling to desktop task and dismiss the first fullscreen task to check repositioning of
         // grid tasks.
-        overview = focusedTaskOpened.switchToOverview().apply { flingBackward() }
+        overview = firstFullscreenTaskOpened.switchToOverview().apply { flingBackward() }
         val desktopTask = overview.currentTask
         assertWithMessage("The current task is not a Desktop.").that(desktopTask.isDesktop).isTrue()
 
-        // Get focused task (previously opened task) then dismiss this task
-        val focusedTaskInOverview = overview.getTestActivityTask(TEST_ACTIVITY_2)
-        assertTaskContentDescription(focusedTaskInOverview, TEST_ACTIVITY_2)
-        focusedTaskInOverview.dismiss()
+        // Get first fullscreen task (previously opened task) then dismiss this task
+        val firstFullscreenTaskInOverview = overview.getTestActivityTask(TEST_ACTIVITY_2)
+        assertTaskContentDescription(firstFullscreenTaskInOverview, TEST_ACTIVITY_2)
+        firstFullscreenTaskInOverview.dismiss()
 
-        // Dismiss DesktopTask to validate whether the new focused task will take its position
+        // Dismiss DesktopTask to validate whether the new task will take its position
         desktopTask.dismiss()
 
-        // Dismiss last focused task
+        // Dismiss last fullscreen task
         val lastFocusedTask = overview.currentTask
         assertTaskContentDescription(lastFocusedTask, TEST_ACTIVITY_1)
         lastFocusedTask.dismiss()
diff --git a/tests/tapl/com/android/launcher3/tapl/OverviewTask.java b/tests/tapl/com/android/launcher3/tapl/OverviewTask.java
index 70bfb60..2431ef5 100644
--- a/tests/tapl/com/android/launcher3/tapl/OverviewTask.java
+++ b/tests/tapl/com/android/launcher3/tapl/OverviewTask.java
@@ -157,6 +157,7 @@
             }
 
             boolean taskWasFocused = mLauncher.isTablet()
+                    && !isDesktop()
                     && getVisibleHeight() == mLauncher.getOverviewTaskSize().height();
             List<Integer> originalTasksCenterX =
                     getCurrentTasksCenterXList().stream().sorted().toList();