Eh, there’s a completely independent reimplementation of the server, so I’d be surprised if the same doesn’t happen for the apps if there’s a real issue that comes up

If you self host bitwarden/vaultwarden, each client stores an encrypted copy of the database, so even if your server was completely destroyed, you’d still have access to all the accounts you’re saving in it.

Yep, it does!

You could try flashing the recovery image and re-imaging your deck. https://help.steampowered.com/en/faqs/view/1B71-EDF2-EB6D-2BB3

I’d contact valve support if that doesn’t work, they’ve always been great whenever I’ve interacted with them.

…They said waydroid