Starfish

i think garmin smartwatches keeps data offline. some of them dont even have wifi

Try FF 7 and 8. FF 6 gets recommended a lot.

Finally got time to play Battleblock Theater after finishing Castle Crashers

Can you recommend me some good ones?

I have 15 atm. Using mostly f-droid and Izzy for all the other apps that i cant find on obtainium.
Breezy Weather, GrapheneOS Camera, Cirrus, Notesnook, Transportr, Amaze File Manager, Ungoogled Chromium, Material Files, NewPipe, PDF Viewer GrapheneOS, Podverse, pr0gramm, RedReader, MEGA Android Client, Notally.