

Not the person you asked, but my Jellyfin is only exposed through my reverse proxy (nothing else forwarded), and I simply put Authelia in front of Jellyfin in the reverse proxy using forward_auth (not using OAuth to integrate with Jellyfin!), and that means that you have to be authenticated for any request on my jellyfin subdomain to be able to reach my Jellyfin server at all. Probably means I can’t connect via the app remotely, only via browser, but then I can just use my VPN and connect directly to the local IP.
Same for me, and I use the button in my quick settings as well.