Unless its something like Bitwarden where you can use it even if they go offline, can take an encrypted or unencrypted backup of your local passwords/accounts, and are FOSS so you can easily self-host your own version if anything happens where you want to cut ties (thanks Vaultwarden!). They’re an awesome company and one I highly suggest supporting with a paid account
Check out Heliboard (also on F-Droid) and follow the instructions to enable gesture typing. I also suggest Futo for on-device voice to text.
What specific apps are you using that you can’t deal going away from? Other than some social media or gamr or something. Even then it seems like there are replacements a lot of the time