Switched to them in 2022 after a 2-year of proton precisely because the revised proton plans were weird and because id heard a lot of negative stories about getting locked out (from the proton side, not losing password). Ironically I almost just went thru the lockout process but thankfully the email support guy was able to get things sorted.
Tbh I miss nothing and since I use simple login or anonaddy for most misc things, switching was easy. My proton account is de facto dead...I wouldn't refuse to return, but I'm really just an a la carte guy.