Those instructions are about how to reinstall SteamOS on your deck. A little further down the page it talks about how to install on other handheld PC’s like the Legion Go and ROG Ally.
Currently, expanded support includes devices with AMD hardware and an NVME drive, targeted toward handheld devices. Please note, support for all devices that is not officially ‘Powered by SteamOS’ is not final (currently anything that is not a Steam Deck or Legion Go S)
While you technically can download it and people have been able to install it on their PC’s, Valve doesn’t recommend doing so.
They probably will (hopefully) have a version targeted toward PC’s in the future, but it’s not there yet.
If you want a SteamOS style experience on desktop you would be better off using Bazzite since that is what it’s designed for.
You are correct that it is possible to do, but it’s not recommended.
SteamOS isn’t out for download if I remember correctly but you are correct about Bazzite and Novato being similar and great gaming specific distros.
Bazzite is modeled off of Steam OS
Good news, it actually is and had been for a few months! https://help.steampowered.com/en/faqs/view/1B71-EDF2-EB6D-2BB3#reimage
Those instructions are about how to reinstall SteamOS on your deck. A little further down the page it talks about how to install on other handheld PC’s like the Legion Go and ROG Ally.
While you technically can download it and people have been able to install it on their PC’s, Valve doesn’t recommend doing so.
They probably will (hopefully) have a version targeted toward PC’s in the future, but it’s not there yet.
If you want a SteamOS style experience on desktop you would be better off using Bazzite since that is what it’s designed for.
You are correct that it is possible to do, but it’s not recommended.