SteamOS will be coming to other handhelds before you can install it on your PC

Will SteamOS ever become generally available straight from Valve, instead of the community builds you can try out right now?

We're hoping soon, though, it is very high on our list, and we want to make SteamOS more widely available. We'll probably start with making it more available to other handhelds with a similar gamepad style controller. And then further beyond that, to more arbitrary devices. I think that the biggest thing is just, you know, driver support and making sure that it can work on whatever PC it happens to land on. Because right now, it's very, very tuned for Steam Deck."

Valve also just unveiled a new and updated Steam Deck, with an OLED display, more efficient processor, and a few other nips and tucks, including making the devices easier to repair, not harder - made available for the same price as the previous model it replaces.