What you must do is edit the /system/etc/hosts file to direct all ad sites to 127.0.0.1. ... plug in your Android device and copy the file to /system/etc on the Android file system hierarchy.

All devices launching with Android 13 or later will have to use Huawei’s EROFS file system format for read-only partitions if they want to ship with access to Google’s services and the Play Store.