I updated my device to Lineahe OS based on Android 15 after I have been using Lineage OS based on Android 14 for a while. I don’t know if this is a common issue with Android 15 or it’s only with Lineage OS or my installation is sonewhat crippled (I did clean flash and I already reinstalled once), but the OS is very aggressively killing apps compared to Android 14 to the point it is annoying.
Example
In Android 14 if I started a download in the browser, the browser would display a permanent notification that it’s downloading and if I swiped away the browser from recents the download would continue. In Android 15 the downloading stops immidiately after I swipe the browser from recents.
And that’s not the only problem. Background services like my companion watch app don’t work properly because it seems they get killed in the background and messaging or e-mail apps sometimes seem to have the same problem. I tried disabling battery optimizations for these apps, but it doesn’t seem to help at all.
Does anyone else experience similar issues with Android 15?
I have GrapheneOS and haven’t been having such problems. It does aggressively kill apps when I kill them from the recent apps menu swipe thing but that’s expected behaviour. I don’t understand how having a notification is what’s keeping an app alive.
In developer settings their is an option called background process limit that limits the number of processes that will run in background. Check that see if it makes any changes.
Do you remember notifications that couldn’t be swiped away in older Android versions? Their point was to keep their app alive. They still exist and still work the same way, keeping their app alive until it cancels the notification, except they can now be dismissed like any other notification (which doesn’t really have any effect other than hiding it from you - it will still keep the app alive even when hidden).
It’s possible that it’s broken in AOSP for some reason, but developer documentation says it should work like this and it does indeed work like this on stock Google ROMs on Pixels.
I also have GrapheneOS, but have been noticing that it would (for example) annoyingly kill Voyager when I’m in the middle of writing a comment and task switch to Firefox to copy a URL or something. I switch back and it’s back on the home feed with a message that it “recovered” my comment text, but of course I have no hope of finding the thing I wanted to reply to again…
This is on a Pixel 7 that should have plenty of RAM, BTW.