You can, technically, but there are some caveats.
SteamOS is not a general purpose OS. It is optimized to run on the Steam Deck (plus the Frame and Gabecube I guess). Its software components are tested on a limited range of hardware (specifically AMD silicon), and it might not have certain optimizations and compatibility fixes that are required by other consumer hardware. It also probably has some proprietary bits, especially the firmware.
The best option is Bazzite. It’s not based on SteamOS, but it is built with a robust gaming experience in focus. You can even get it to boot directly into Steam Big Picture. Watch this loud Aussie man do it!
The other option is HoloISO, which is an independent reimplementation of SteamOS. Their intention is to get as close to the real SteamOS as possible. Hardware support is limited (especially nvidia).
Kolanaki@pawb.social 4 months ago
No.
They haven’t released the current version of SteamOS to be installed on any machine. You could do the old steam machine OS; but it is not anywhere the same as what the Deck and this new Steam Machine use other than being based on Linux.
TeNppa@sopuli.xyz 4 months ago
They have released the recovery image for the deck, which can be installed on any computer and if you have AMD built pc, it should work just fine. Ofc ymmv.