I’m glad you’re having a better time with it! Honestly, if you watch any amount of YouTube on your TV, it’s well worth the $20 just for SmartTubeNext. Such a massive improvement to skip all the sponsor, promotion, intro, etc segments.

Jellyfin is definitely on my radar, and I’d love to make the switch. One thing that’s important to me and my family, however, is the library sharing between accounts. To my knowledge, Jellyfin doesn’t support this.

Directly from the play store, you can install alternative launchers. Some people like FLauncher; I did not. I went with Projectivy. Highly customizable, very clean.

You can also grab a button re-mapper there. I went with tvQuickActions Pro - it’s paid, but quite powerful.

For SmartTubeNext, I followed this guide.

I just recently started using my Samsung TVs as dumb screens because they’re slow as shit, but a nice side effect is zero ads.

ONN 4k streaming box for $20 at Walmart.
Install a custom launcher.
Install a button remapper for the remote.
Install SmartTubeNext for YouTube (no ads, SponsorBlock).
Install whatever other apps you need (Plex, etc).

FAR better experience. Turn the TV on and it’s ready to go in a few seconds, not the ~60-90 seconds it takes the Tizen nonsense to “warm up.”

It’s not perfect, but it’s a hell of a lot better. Can recommend, especially for only $20.