There’s not a game I prefer on the Switch over the Deck but I do think both systems have their merits. I’ve played through Zelda TotK on Switch recently and play my Deck more often (lately a lot of BG3)

The Deck is honking huge, while the switch is small. I much prefer the size of the Deck to the Switch but there’s a an easy argument to be made there for portability.

The Switch is just more dock-friendly. Any serious Switch owner (who would care about docking) owns a Pro Controller. Docking to and undocking from a TV just works perfectly 100% of the time. You can buy a dock for the Steam Deck and you could Bluetooth a controller but it’s definitely more finicky - specifically with some games especially.

Multi-person household. I have a wife and a kid. I’m very fortunate and my wife has her own Deck but we do share a Switch and a PS5. There were dozens of times I would have played Zelda or FF16 but my wife was using the console so I settled with my Deck. I could easily see the opposite happening if we didn’t each own our own Steamdeck