My setup here: a headless RPI4, running :

• RPI OS lite;
• a transmission server so I can add torrents from my computer, or phone using a browser;
• a VPN running all the time;
• a Jellyfin server.

On my TV and other devices, I’m running a Jellyfin client. My experience with Plex is not as good as with Jellyfin, as Plex struggles to play some MKV files.

Using a Pro 6 with Linux (Arch now, but used Ubuntu and Fedora in the past). I wouldn’t say that camera works like a charm, far from that.