Controller seems wireless and usb port used for glasses.

This compared to the deck which has a screen and controller integrated.

If he has to carry a controller as well, I don't see the benefit. Together with the controller the setup will be bigger than the steam deck.

Looks like more ergonomic setup, and maybe convenient - you can chuck controller into bag, but fuss around with carrying case with steamdeck.

Smaller, lighter, arguably "tougher" - but the author starts by saying this is a bad idea too! It mostly seemed to be a passtime.