What are my OS options if I wanted to disconnect my TV from the internet, use it's remote via CEC with a Raspberry Pi, and watch Plex, Jellyfin and YouTube (with sponsorblock)?

I tried Kodi with Libelec but it's still so jank. The Plex app is broken, there is no invidious or YouTube app I found that works. And sometimes it just "thinks" forever and I need to get up and unplug it.

I saw that Plasma Bigscreen was revived and it looks promising, but they don't have a release yet.

Are there any other options?