I have an old laptop with Linux Mit hooked to my TV. Firefox with some bookmarks to different streaming services, Freetube with subscriptions, sunshine/moonlight to my gaming PC and emulators to play some retro adventures with my kids. I remote controll it with KDE Connect from my phone. Works great!
I used to fiddle with Kodi on a Raspberry Pi, but the laptop is so simple and easy to set up, I don’t see myself going back.