I think they are both fine,
I like that tuta is doing just one thing, ( ignoring the new storage feature ), and trying it’s best at it.
Proton is going to more of a google approach, however the nonprofit goal they just set is pretty awesome.
I got the tuta’s, now non-existent, premium plan, and am using simplelogin relays to protect it. No plan in changing the setup.
Nowadays proton owns simplelogin and I think it offers it’s services to customers, a couple bucks cheaper than my impossible setup, so protonmail it’s probably the best option nowadays.
Yeah done anything with it over 1.5 ~ 2 years, on top of that NFC does not work at all in many cases.
Yeah I regreted buying one . . . works great on PC though.