more info:'Apple’s App Tracking Transparency tool “only restricts direct access to a user’s IDFA, the rest is essentially an honor system, where Apple is asking developers to respect user choice not to track but isn’t actually blocking any third party trackers itself. App Tracking Protection blocks those third-party trackers directly, making the tool more powerful than what’s available on iOS."'
A new DuckDuckGo tool is supposed to prevent apps from tracking Android users
The tool will be built into the DuckDuckGo app on Android
https://www.theverge.com/2021/11/20/22793068/duckduckgo-tool-prevent-apps-tracking-android-users