You can now use your AirTag with your Android devices, albeit it doesn't work nearly as well as with Apple devices. Apple added a new app to the
AirTag tracking can now be detected by Android phones
Can I use Apple AirTag with my Android phone?
Add an AirTag to Find My to keep track of personal items - Apple Support
How to Use AirTags with Android
Does AirTag Work With Android?
Google Rolls Out Apple AirTag Detection With Unwanted Tracking Alerts on Android Devices
How to Use Apple AirTags with Android Phones - Pros and Cons
Android users can read an AirTag's 'Lost Mode' message via NFC
Apple To Release an Android App To Detect Nearby AirTags
How to Use AirTag on Android !