Android's next major software upgrade is already linked to a portfolio of tweaks and changes, the vast majority seem to affect how it looks and acts thus far. However, Google has now announced that it aims to maximize UX devices that run the latest version of its OS, through new, potentially tighter controls on how apps use battery off-screen.
https://www.notebookcheck.net/Android-13-will-alert-a-user-if-an-app-causes-battery-drain-in-the-background.609581.0.html
Android 12 already does warn on background battery use. Biggest offender?
Google Play!