godot/platform/android/java/lib/res/layout/godot_app_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:id="@+id/godot_fragment_container"
	android:layout_width="match_parent"
	android:layout_height="match_parent" />