It feel like we’re losing to Google, day by day. They aren’t killing AOSP directly, but they are making it useless step by step.
Now it’s Google Play Services, Play Integrity checks, installation source checks… more and more apps just refuse to run without GMS. Banking apps? Most of them don’t work. And it’s only getting worse.
I run vanilla AOSP on my main profile, no Play Services. I keep GMS only in my work profile for the apps that absolutely need it. But now even some regular apps that don't need any play services won’t work on my main profile anymore. They simply block your from running , like le chat.
Maps is google's most important app there is no way to run without play services. Sure we can use webview or gmaps wv, but they don't provide turn-by-turn directions.
Earlier maps used to work without play services, but two years ago, an update stopped it from working. Now that old version is out of date and no longer works.
Google is slowly making GMS very important to run.
The problem with GMS is they require to run as system app and has to have all the permissions by default.
Hope EU puts pressure to make google allow apps to run independently without GMS or atleast install them as user apps(like graphene os sandboxed play services).
If we keep going on like this, AOSP can only run fdroid apps in the future.
You can use andOTP if you want a FOSS app on Android. If you're a hardcore no-Android-at-all user (or considering), you can use KeePassXC on the desktop. This kind of defeats the purpose of 2FA, but on the other hand people with KeePassXC tend to have strong passwords due to ease of their maintenance, so you don't need 2FA as much to begin with.
TL&DR; use andOTP on Android or KeePassXC on Linux Desktop.