Archive link:
https://ghostarchive.org/archive/hWxVX
Owners of newer iPhones should turn on Bluetooth and check their settings to ensure they’ll receive notifications. Under Settings, go to Privacy & Security, and toggle Location Services on. Scroll to the bottom of that page, tap on System Services, and activate Find My iPhone. Also, search for the Find My app, visit Me in the bottom right corner, then tap Customize Tracking Notifications to double-check that notifications are enabled. Also, make sure that you don’t have Airplane mode activated, or you won’t receive any notifications.
When you click on the iPhone alert for an unrecognized AirTag, you may be given the option to play a sound on the AirTag to help locate it. If you own a more recent smartphone from Apple, you might be able to use precision location data to find the hidden device.
Months after the release of the AirTag, Apple launched the Tracker Detect app for Android phones, where users had to initiate the scan. Google and Apple since have continued working together to make it easier for Android phones to detect unwanted AirTag trackers and for Apple phones to spot Android trackers. Recently, Google rolled out automatic smartphone alerts for unknown Bluetooth trackers, similar to what iPhone owners receive for AirTags.
Yes. I've only tested it manually scanning to save battery life though.