Have you used a Nintendo Switch? I kinda doubt it. The Nintendo Switch is way more powerful than the 360 and it shows. Go play something that was on both consoles like Skyrim, Crysis, Doom 3 etc side by side. The Switch versions run better with more effects and run at a higher resolution. Most Nintendo games run well, Mario Kart 8 is 1080p 60FPS (how many 360 games are that like 6?), Mario Odyssey is 900p 60FPS, Bowser's Fury is 60FPS docked, Metroid Dread is 900p 60FPS docked.
None of my Switch controllers have broken either and they've seen more than 30 hours use.
I have both a Switch and Steam Deck. The Steam Deck is good and more powerful but it's also considerably bigger, louder, heavier with worse battery life and I've run into far more issues in the 2 months with it on verified games alone than all my time with the Switch. Using it docked is clunky, ditto doing local play. It's still a PC at heart which is fine but the Switch has an ease of use factor the Steam Deck simply does not have.