Just buy an air mouse for $20 and you don’t have to get up to change episodes. Doesn’t help with having to unplug it from the hdmi all the time but that’s less of a hassle if you can just do it once when you start watching and then control everything from the couch.
Add a keyboard, mouse and monitor, which are already required for every other pc, and you can do everything on the steam deck that you can on any other pc. The steamdeck just has the additional functionality of working without those if you so choose.