I would honestly just use an Apple TV. But the killer feature for me (I currently use a Steam Deck/Steam Controller) is just Youtube without ads reliably. Also total control, if Youtube jacked up the prices for Youtube Red, I always have Ublock.

Total control is the name of the game for me. I can load Steam. I can load Brave. I can load VLC. I can watch any streaming, play any game (proton supported), or listen to any music.