Libelec (kodi) is fine if only playing local media but its use for anything else except realdebrid is extremely lacking. On the plus side it will run great on an Rpi5 and if you go that route you can probably even use your TV remote because Libelec has excellent CEC support.
Jellyfin/Plex is something your TV also probably has an app for, so you wouldn’t even need a media center, just a media server.
Plasma Bigscreen is making slow gains, but in a couple of years will probably be the definitive Linux media center PC.
Also a bit unconventional, but Bazzite can load directly into Steam’s big picture mode. From there you could set shortcuts for Jellyfin or Plex HTPC.



Since I first learned about Linux I have never envisioned a future where Linux didn’t eventually take over essentially all operating system spaces and I still don’t. The question is how long will it take to get there.
But as others have said, I think the overall decline of desktop PC use combined with the just pure overall quality of Linux compared to Mac and Windows PCs in 2026 implies that the x86 PC space will become majority Linux within the next 10 years if not less.