And check out zap.store too. Those are the only 2 app stores I use and I have everything I need.
Granted I don't install anything I can't find without them, but I have 2fa, password manager, whatsapp, telegram, signal, simplex, maps, obsidian for notes, mail, calendar, all my wallets I test, etc...
And the only things I used obtainium for are:
1. WhatsApp
2. Shelter (gives me a work mode isolated profile)
3. Catima (for my nandos loyalty card 😅)