AntennaPod - best podcast app by far
Catima - Loyalty Cards
Dashlane - any password manager will do, but my little brother works here
Feeder - I still use RSS feeds
KDE Connect - if you use KDE
Kore - if you use Kodi
MagicEarth - OSMAnd+ is the GOAT, but heavy, takes a lot of tinkering, and fully offline. ME is more intuitive
Obtanium - download direct from GitHub
Proton/SimpleLogin/StandardNotes - if you use Proton
Retro Music - FOSS Android's one weakness. This is the best bad option.
Signal - obviously
Tunerly - if you play guitar
Google Wallet (NETWORK DISABLED) - thanks to Covid nobody makes paper tickets to games and concerts anymore
Breezy Weather - good info to have