It‘s possible to use VR headsets with the Steam Deck. It‘s just far too weak for a pleasant experience.
It‘s worth noting though, that, according to this interview (37:30), Valve is probably working on a new VR HMD which will make use of the things they‘ve learned from developing the Deck.
So I‘d guess there‘s a standalone headset coming from them at some point in the future.
Can the Stream Deck be used with other VR systems? I’d just assume not so I’d never looked at it for that.
It‘s possible to use VR headsets with the Steam Deck. It‘s just far too weak for a pleasant experience.
It‘s worth noting though, that, according to this interview (37:30), Valve is probably working on a new VR HMD which will make use of the things they‘ve learned from developing the Deck. So I‘d guess there‘s a standalone headset coming from them at some point in the future.