Same here. But the bitwarden apps have a local copy of the vault. So you can always prevent them from syncing and use it to get the password. Assuming you have your phone still.
You can always have an offsite copy of the vault on a HDD somewhere. It’ll be outdated, but at least it’ll have the Google account. :)
I also self host Vault Warden. I have my vault automatically exported to Google Drive as an encrypted copy. So worst case I can download from there, and import it to a new password manager or another Bitwarden instance if my server borks.
Based on my setup, I use adguard to DNS rewrite all *.example.com domains to the IP of my Nginx proxy. I have the proxys setup on NPM. On my router I have adguard set as the home network DNS. Cloudflare is used as the external DNS so that the *.example.com domains work outside of my network (and point to thr Nginx server).
My setup is relatively basic, unraid dockers etc.
Bitwarden has features I wanted and was better than the browser password manager I used previously. I already selfhost other apps so adding another one wasn’t an issue. Plus it’s free.