I wonder if this will be a VR trojan horse.

The Steam Deck was wildly popular for a non-Nintendo device. It's got Linux up to 3% of total Steam playtime. If this has a similar draw (play every game on Steam without having to buy a TV), maybe the install base of VR will grow to a point where it's more feasible to make games that support it.

It also makes SteamVR relevant again in a world where Oculus has been eating a lot of the mindshare by releasing affordable headsets and buying the most successful game studios.

It will be more expensive than Quest 3s and so is unlikely to grow the VR market significantly beyond what Meta has achieved so far IMO. I'd love to be wrong.