I use Ubuntu, I’ve used Arch, Debian, Fedora, Pop and many others too. I use Ubuntu because all my hardware works out of the box. Snaps are inoffensive imo. I have just as many issues with abandoned debs or flatpaks and I usually just use whatever package is more maintained.
The most annoying thing about Ubuntu is how slow the packages are sometimes to make it to a release.
How is the Jellyfin software situation looking? Last time I checked it was pretty meh compared to plex. if I recall correctly the best app was Infuse and it was a monthly sub. Are there better options these days? I mostly watch plex on my TV through Android or Apple TV.