Not sure if that's a joke about a since-corrected typo or if you're serious.
Just in case serious, it's the Linux-based operating system that runs on the Steam Deck, and soon to be related devices. So, Linux modified to work better for gaming, especially with Steam.
i wasn’t trying to poke fun at any typo, i was just trying to make light of the logo looking like it says “STEAMOS”. but i appreciate you taking the time to give an earnest response :)
I legitimately didn't know what the steam OS was, so thanks. I was very curious about something that has very little to do with my interests, but I like playing games have always been curious about the steamdeck
Honestly, the Steam Deck has done more for gaming on Linux than just about anything in recent years. Not least because it spurred significant improvements in the software that allows you to run Windows software in Linux (Proton, which is a fork of Wine), since a big chunk of the Steam library doesn't have an actual Linux version.
Like Android, iOS and MacOS, the core conceit of Steam OS is emphasizing usability on a particular set of devices (in this case gaming handhelds, but presumably eventually consoles too since the whole thing is designed around controller inputs as a central UX concern) for a system whose guts are ultimately built on Linux or Unix, but with the worst of the fiddly bits abstracted away and hidden from most end users.