You cant use it with grapheneOS, ive tried. I mainly use bitwarden for passkeys but some (most?) services only work with googles version

I look forward to only criminals having access to encryption

This seems like well intentioned but ultimately pointless. Nothing is stopping a nazi group from just forking off an older version like how gab did with mastodon, and no currently active funkwhale pods allow right wing content already.

Which instance do you use? Mine had been having issues recently

I have like 10 different family members using my server. If I have to do anything beyond just letting them log in to a plex account on the app to get access, they just won’t.

Umm that is all you need to do with jellyfin. You can setup wizarr and give them invites to create an account or just manually make them and give out the info to people.