diff --git a/OWNERS b/OWNERS
index 22efa33..c2df914 100644
--- a/OWNERS
+++ b/OWNERS
@@ -10,7 +10,6 @@
 vadimt@google.com
 winsonc@google.com
 jonmiranda@google.com
-awickham@google.com
 agvard@google.com
 
 # Launcher workspace eng team
@@ -46,6 +45,20 @@
 shamalip@google.com
 zakcohen@google.com
 
+## Note: some of the below overlap and also work on other integrations like Circle to Search.
+
+# All Apps / QSB team
+awickham@google.com
+brdayauon@google.com
+ganjam@google.com
+kylim@google.com
+
+# Smartspace team
+xilei@google.com
+davidct@google.com
+iamiam@google.com
+jiuyu@google.com
+
 per-file FeatureFlags.java, globs = set noparent
 per-file FeatureFlags.java = sunnygoyal@google.com, winsonc@google.com, adamcohen@google.com, hyunyoungs@google.com, captaincole@google.com
 
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 bc49146..ac59c35 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 b299edf..86e41df 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/src/com/android/launcher3/BubbleTextView.java b/src/com/android/launcher3/BubbleTextView.java
index 247ee48..c26b612 100644
--- a/src/com/android/launcher3/BubbleTextView.java
+++ b/src/com/android/launcher3/BubbleTextView.java
@@ -1185,7 +1185,7 @@
 
 
     public void applyDotState(ItemInfo itemInfo, boolean animate) {
-        if (mIcon instanceof FastBitmapDrawable) {
+        if (mIcon != null) {
             boolean wasDotted = mDotInfo != null;
             mDotInfo = mActivity.getDotInfoForItem(itemInfo);
             boolean isDotted = mDotInfo != null;
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 0d64d9f..51e5b51 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -285,6 +285,7 @@
 import java.util.Optional;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
+import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 /**
@@ -2269,8 +2270,9 @@
      */
     @Override
     public void bindItems(final List<ItemInfo> items, final boolean forceAnimateIcons) {
-        bindInflatedItems(items.stream().map(i -> Pair.create(
-                i, getItemInflater().inflateItem(i, getModelWriter()))).toList(),
+        bindInflatedItems(items.stream()
+                .map(i -> Pair.create(i, getItemInflater().inflateItem(i, getModelWriter())))
+                .collect(Collectors.toList()),
                 forceAnimateIcons ? new AnimatorSet() : null);
     }
 
diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index 69a5a83..1804dd6 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -1761,7 +1761,7 @@
         }
 
         final DragView dv;
-        if (contentView instanceof View) {
+        if (contentView != null) {
             dv = mDragController.startDrag(
                     contentView,
                     draggableView,
diff --git a/src/com/android/launcher3/celllayout/ReorderAlgorithm.java b/src/com/android/launcher3/celllayout/ReorderAlgorithm.java
index c303783..043c3be 100644
--- a/src/com/android/launcher3/celllayout/ReorderAlgorithm.java
+++ b/src/com/android/launcher3/celllayout/ReorderAlgorithm.java
@@ -26,6 +26,7 @@
 import java.util.Comparator;
 import java.util.List;
 import java.util.Map.Entry;
+import java.util.stream.Collectors;
 
 /**
  * Contains the logic of a reorder.
@@ -143,12 +144,14 @@
         // and not by the views hash which is "random".
         // The views are sorted twice, once for the X position and a second time for the Y position
         // to ensure same order everytime.
-        Comparator comparator = Comparator.comparing(
-                view -> ((CellLayoutLayoutParams) ((View) view).getLayoutParams()).getCellX()
+        Comparator<View> comparator = Comparator.comparing(
+                (View view) -> ((CellLayoutLayoutParams) view.getLayoutParams()).getCellX()
         ).thenComparing(
-                view -> ((CellLayoutLayoutParams) ((View) view).getLayoutParams()).getCellY()
+                (View view) -> ((CellLayoutLayoutParams) view.getLayoutParams()).getCellY()
         );
-        List<View> views = solution.map.keySet().stream().sorted(comparator).toList();
+        List<View> views = solution.map.keySet().stream()
+                .sorted(comparator)
+                .collect(Collectors.toList());
         for (View child : views) {
             if (child == ignoreView) continue;
             CellAndSpan c = solution.map.get(child);
diff --git a/src/com/android/launcher3/model/BaseLauncherBinder.java b/src/com/android/launcher3/model/BaseLauncherBinder.java
index c251114..014a28b 100644
--- a/src/com/android/launcher3/model/BaseLauncherBinder.java
+++ b/src/com/android/launcher3/model/BaseLauncherBinder.java
@@ -388,8 +388,9 @@
 
             ModelWriter writer = mApp.getModel()
                     .getWriter(false /* verifyChanges */, CellPosMapper.DEFAULT, null);
-            List<Pair<ItemInfo, View>> bindItems = items.stream().map(i ->
-                    Pair.create(i, inflater.inflateItem(i, writer, null))).toList();
+            List<Pair<ItemInfo, View>> bindItems = items.stream()
+                    .map(i -> Pair.create(i, inflater.inflateItem(i, writer, null)))
+                    .collect(Collectors.toList());
             executeCallbacksTask(c -> c.bindInflatedItems(bindItems), executor);
         }
 
diff --git a/src/com/android/launcher3/model/GridSizeMigrationDBController.java b/src/com/android/launcher3/model/GridSizeMigrationDBController.java
index bfa00bd..03f5727 100644
--- a/src/com/android/launcher3/model/GridSizeMigrationDBController.java
+++ b/src/com/android/launcher3/model/GridSizeMigrationDBController.java
@@ -227,9 +227,12 @@
         Collections.sort(hotseatToBeAdded);
         Collections.sort(workspaceToBeAdded);
 
-        List<Integer> idsInUse = dstWorkspaceItems.stream().map(entry -> entry.id).collect(
-                Collectors.toList());
-        idsInUse.addAll(dstHotseatItems.stream().map(entry -> entry.id).toList());
+        List<Integer> idsInUse = dstWorkspaceItems.stream()
+                .map(entry -> entry.id)
+                .collect(Collectors.toList());
+        idsInUse.addAll(dstHotseatItems.stream()
+                .map(entry -> entry.id)
+                .collect(Collectors.toList()));
 
         // Migrate hotseat
         solveHotseatPlacement(helper, destHotseatSize,
@@ -259,7 +262,8 @@
         int screenId = destReader.mLastScreenId + 1;
         while (!workspaceToBeAdded.isEmpty()) {
             solveGridPlacement(helper, srcReader, destReader, screenId, trgX, trgY,
-                    workspaceToBeAdded, srcWorkspaceItems.stream().map(entry -> entry.id).toList());
+                    workspaceToBeAdded,
+                    srcWorkspaceItems.stream().map(entry -> entry.id).collect(Collectors.toList()));
             screenId++;
         }
 
diff --git a/src/com/android/launcher3/model/data/AppPairInfo.kt b/src/com/android/launcher3/model/data/AppPairInfo.kt
index 3496c17..b6de04a 100644
--- a/src/com/android/launcher3/model/data/AppPairInfo.kt
+++ b/src/com/android/launcher3/model/data/AppPairInfo.kt
@@ -22,6 +22,7 @@
 import com.android.launcher3.icons.IconCache
 import com.android.launcher3.logger.LauncherAtom
 import com.android.launcher3.views.ActivityContext
+import java.util.stream.Collectors
 
 /** A type of app collection that launches multiple apps into split screen. */
 class AppPairInfo() : CollectionInfo() {
@@ -54,7 +55,7 @@
 
     /** Returns the app pair's member apps as an ArrayList of [ItemInfo]. */
     override fun getContents(): ArrayList<ItemInfo> =
-        ArrayList(contents.stream().map { it as ItemInfo }.toList())
+        ArrayList(contents.stream().map { it as ItemInfo }.collect(Collectors.toList()))
 
     /** Returns the app pair's member apps as an ArrayList of [WorkspaceItemInfo]. */
     override fun getAppContents(): ArrayList<WorkspaceItemInfo> = contents
diff --git a/src/com/android/launcher3/provider/RestoreDbTask.java b/src/com/android/launcher3/provider/RestoreDbTask.java
index f56888b..dc42920 100644
--- a/src/com/android/launcher3/provider/RestoreDbTask.java
+++ b/src/com/android/launcher3/provider/RestoreDbTask.java
@@ -176,7 +176,7 @@
         // At this point idp.dbFile contains the name of the dbFile from the previous phone
         return LauncherFiles.GRID_DB_FILES.stream()
                 .filter(dbName -> context.getDatabasePath(dbName).exists())
-                .toList();
+                .collect(Collectors.toList());
     }
 
     /**
diff --git a/src/com/android/launcher3/search/StringMatcherUtility.java b/src/com/android/launcher3/search/StringMatcherUtility.java
index 7446314..20b4d0b 100644
--- a/src/com/android/launcher3/search/StringMatcherUtility.java
+++ b/src/com/android/launcher3/search/StringMatcherUtility.java
@@ -127,17 +127,17 @@
             if (query == null || target == null) {
                 return false;
             }
-            switch (mCollator.compare(query, target)) {
-                case 0:
-                    return true;
-                case -1:
-                    // The target string can contain a modifier which would make it larger than
-                    // the query string (even though the length is same). If the query becomes
-                    // larger after appending a unicode character, it was originally a prefix of
-                    // the target string and hence should match.
-                    return mCollator.compare(query + MAX_UNICODE, target) > -1;
-                default:
-                    return false;
+            int compare = mCollator.compare(query, target);
+            if (compare == 0) {
+                return true;
+            } else if (compare < 0) {
+                // The target string can contain a modifier which would make it larger than
+                // the query string (even though the length is same). If the query becomes
+                // larger after appending a unicode character, it was originally a prefix of
+                // the target string and hence should match.
+                return mCollator.compare(query + MAX_UNICODE, target) >= 0;
+            } else {
+                return false;
             }
         }
 
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/src/com/android/launcher3/widget/picker/WidgetRecommendationsView.java b/src/com/android/launcher3/widget/picker/WidgetRecommendationsView.java
index d84a219..ef87db5 100644
--- a/src/com/android/launcher3/widget/picker/WidgetRecommendationsView.java
+++ b/src/com/android/launcher3/widget/picker/WidgetRecommendationsView.java
@@ -222,7 +222,8 @@
         if (shouldShowFullPageView(recommendations)) {
             // Show all widgets in single page with unlimited available height.
             return setRecommendations(
-                    recommendations.values().stream().flatMap(Collection::stream).toList(),
+                    recommendations.values().stream().flatMap(Collection::stream)
+                            .collect(Collectors.toList()),
                     deviceProfile, /*availableHeight=*/ Float.MAX_VALUE, availableWidth,
                     cellPadding);
 
@@ -357,7 +358,7 @@
         // Show only those widgets that were displayed when user first opened the picker.
         if (!mDisplayedWidgets.isEmpty()) {
             filteredRecommendedWidgets = recommendedWidgets.stream().filter(
-                    w -> mDisplayedWidgets.contains(w.componentName)).toList();
+                    w -> mDisplayedWidgets.contains(w.componentName)).collect(Collectors.toList());
         }
         Context context = getContext();
         LayoutInflater inflater = LayoutInflater.from(context);
diff --git a/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java b/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
index 150806a..9ef9349 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsFullSheet.java
@@ -85,6 +85,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.function.Predicate;
+import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
 /**
@@ -647,7 +648,7 @@
                 mRecommendedWidgets = mActivityContext.getWidgetPickerDataProvider().get()
                         .getRecommendations()
                         .values().stream()
-                        .flatMap(Collection::stream).toList();
+                        .flatMap(Collection::stream).collect(Collectors.toList());
                 mRecommendedWidgetsCount = mWidgetRecommendationsView.setRecommendations(
                         mRecommendedWidgets,
                         mDeviceProfile,
diff --git a/src/com/android/launcher3/widget/picker/WidgetsRecommendationTableLayout.java b/src/com/android/launcher3/widget/picker/WidgetsRecommendationTableLayout.java
index 0bcab60..216f4d4 100644
--- a/src/com/android/launcher3/widget/picker/WidgetsRecommendationTableLayout.java
+++ b/src/com/android/launcher3/widget/picker/WidgetsRecommendationTableLayout.java
@@ -41,6 +41,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.stream.Collectors;
 
 /** A {@link TableLayout} for showing recommended widgets. */
 public final class WidgetsRecommendationTableLayout extends TableLayout {
@@ -163,6 +164,7 @@
         }
 
         // Perform re-ordering once we have filtered out recommendations that fit.
-        return filteredRows.stream().sorted(WIDGETS_TABLE_ROW_COUNT_COMPARATOR).toList();
+        return filteredRows.stream().sorted(WIDGETS_TABLE_ROW_COUNT_COMPARATOR)
+                .collect(Collectors.toList());
     }
 }
diff --git a/src/com/android/launcher3/widget/util/WidgetsTableUtils.java b/src/com/android/launcher3/widget/util/WidgetsTableUtils.java
index df72f07..1134781 100644
--- a/src/com/android/launcher3/widget/util/WidgetsTableUtils.java
+++ b/src/com/android/launcher3/widget/util/WidgetsTableUtils.java
@@ -95,7 +95,7 @@
         List<ArrayList<WidgetItem>> rows = groupWidgetItemsUsingRowPxWithoutReordering(
                 sortedWidgetItems, context, dp, rowPx,
                 cellPadding);
-        return rows.stream().sorted(WIDGETS_TABLE_ROW_SIZE_COMPARATOR).toList();
+        return rows.stream().sorted(WIDGETS_TABLE_ROW_SIZE_COMPARATOR).collect(Collectors.toList());
     }
 
     /**
diff --git a/tests/Android.bp b/tests/Android.bp
index e4fecc5..f6e2d07 100644
--- a/tests/Android.bp
+++ b/tests/Android.bp
@@ -239,6 +239,5 @@
     ],
     instrumentation_for: "Launcher3",
     plugins: ["dagger2-compiler"],
-    upstream: true,
     strict_mode: false,
 }
diff --git a/tests/multivalentTests/shared/com/android/launcher3/testing/OWNERS b/tests/multivalentTests/shared/com/android/launcher3/testing/OWNERS
index a818d5e..02e8ebc 100644
--- a/tests/multivalentTests/shared/com/android/launcher3/testing/OWNERS
+++ b/tests/multivalentTests/shared/com/android/launcher3/testing/OWNERS
@@ -2,4 +2,3 @@
 sunnygoyal@google.com
 winsonc@google.com
 hyunyoungs@google.com
-mateuszc@google.com
\ No newline at end of file
diff --git a/tests/multivalentTests/src/com/android/launcher3/widget/picker/OWNERS b/tests/multivalentTests/src/com/android/launcher3/widget/picker/OWNERS
index 775b0c7..716ab90 100644
--- a/tests/multivalentTests/src/com/android/launcher3/widget/picker/OWNERS
+++ b/tests/multivalentTests/src/com/android/launcher3/widget/picker/OWNERS
@@ -5,7 +5,6 @@
 #
 
 # Widget Picker OWNERS
-zakcohen@google.com
 shamalip@google.com
 wvk@google.com
 
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