SteamOS is more locked down, the root is read only and there’s no layering system so every update completely undoes any changes you might have forced on the root partitions.
Bazzite is an alternative operating system for the Steam Deck and for Desktop PCs that closely emulates SteamOS, with numerous additional features and improvements on top. We use immutable Fedora as a base, and allow packages to be layered and kept through updates unlike stock SteamOS. You can even print and change the language from English if you want.
I used container native originally because gamers are allergic to the word cloud, rightfully so.
Container native is wrong though, and I’m confident enough now to call it exactly what it is.