Google has revealed to developers its plan to provide users with more control over their data and help support security and privacy by making it harder for Android apps to track users who’ve opted out of receiving personalized ads.
Google made the announcement in an email to Play Store developers and has also updated its support page.
Google’s support page says that;
the rollout of the new policy will happen in phases. Android 12 devices will start seeing the change in “late 2021,” before it rolls out to all devices with Google Play early next year. XDA Developers reports that; Google Play Services will also notify existing apps with access to your advertising ID and related data so that this can be deleted where appropriate.