Fabian ¯\_(ツ)_/¯ on Nostr: I use them primarily. Main reason why I decided for them and not for protonmail was ...

I use them primarily. Main reason why I decided for them and not for protonmail was their app being available on f-droid. When I made the decision a few years back protonmails' app was only available via the play store (no idea if its still the case). And I'm quite happy and satisfied with #Tutanota and have no intentions to switch anytime soon.