This is actually incredibly funny reading because Google Stadia was 100% worse than Xbox Cloud. You had to sub + pay for the game too. And some of them were exclusives too.
Compared to that how Gamepass works in tandem with Xbox Cloud (you can play on PC, Xbox, and streaming) is day and night YET it's still a problem
Plus I don't get the publisher part
>It was not sufficiently open to providers who might wish to offer versions of games on PC operating systems other than Windows.
Most of the Xbox Cloud games are multiplatform, and I don't just mean PC (Windows) and Xbox but Playstation and sometimes Linux or Mac too