Passwords are cached at the client for a minimum of 30 days as long as you stay logged in. this goes into specific details. (You use the bitwarden client for vaultwarden in case you weren’t aware)

Edit:clarification

US Tax filing has been free for a few years if you know where to look. https://myfreetaxes.com/ is a good one with no income restrictions.

By meta, assume anything sent is readable my a meta employee.