I recently got a TCL TV that has Google TV on it. The reason I chose it, even tho it’s not the highest quality 4K capable TV, is that on first boot it gives you the option to choose dumb TV or smart TV modes. Have never connected it to the internet. Maybe you would have some luck looking into that!
You sound like me lol. I had a lemur first snd upgraded to a pangolin a few years ago. I do a lot of gaming on my pangolin, but mostly indie games. Per Aspera, parkitect, firewatch, stuff like that. It will play Valheim but it’s a little choppy on low.
I expect the latest version of the pangolin would run better. Not only is it a much improved APU, it looks like it has vastly improved cooling.