Even for 1080p media, playing locally with advanced denoising and upscaling to 4k is so nice, and of course just not having to deal with all the streaming caveats.
For games pirating it for performance testing is useful before you know you’ll fully commit to it, although Steam let’s you play for up to 2 hours and still get a refund, a lot of games will require you to play more of it to make that decision (looking at you, Starfield… I’m glad I didn’t buy that one).