I'm a Linux user myself, and into hardware and self-hosting, so I have hardware coming out of my ears, but I wouldn't dare try and use a Linux box in the living room.

My wife and kids use the living room TV most, I barely use it, and only then if I'm watching with them, they use all of the streaming services so they want it to play in 4K and "just work", for which Linux is unfortunately not the solution.