Most SteamOS users aren’t interacting with a bash shell or anything though, they’re just running steam in big picture. If it’s valid to say that SteamOS introduced people to Linux because the kernel happens to be Linux, then it’s equally valid to say that about Android, which has had a much larger impact than SteamOS has

Yes but I don’t know if there’s anyone out there who would install SteamOS on their desktop, vs just using it on steam deck. I know people in this sub certainly would, but I don’t think normies would go out of their way to do so without official buy-in from Valve, and they got out of the steam machine business

No because docker is not actually a VM

Docker is not a virtual machine, it’s a fancy wrapper around chroot