Also Microsoft Games Studios owns enough studios to make an impact.
Also Proton means zero game studios have to care Steam OS exists, they target Windows, use Visual Studio, and Valve is the one that has to make the needful if they care.
The same studios might even be using game engines that support GNU/Linux, yet letting Valve do the work is much more appealing.
Microsoft has been absolute dogshit at releasing newer program APIs for developer to use. Wine doesn't support UWPs/appx just because there's no demand, since no-one uses the Windows Store. You expect that same Microsoft to get game devs to jump on their new DRM scheme?
Microsoft released even their darling Halo in 2020 and 2021, and have committed to release Halo: Campaign Evolved in 2026 on Steam. I can't think of any new titles under the Microsoft umbrella that hasn't also released in Steam. They've realised that battle is lost. They can change course, but that doesn't mean they'll get anything out of that.
Developers are already doing sanity checks and patches specific to SteamOS. That trend will continue if SteamOS or Linux gains ground. It doesn't matter that the foundation is Microsoft, because even if Microsoft goes bankrupt tomorrow, that foundation doesn't disappear, and even the most malicious Microsoft can't unmake reimplementations or translation layers of their APIs.
That same studio would prefer to make a stable Windows version than an unstable Linux version that might not even work in 5 years since it used some stupid dependency. ANd if they're sensible about it and do a sanity check with Proton, Valve doesn't even have to do any work for them outside of what's already been done.
WinRT now runs on Win32 side as well, that is what new APIs like Windows ML, the abstraction used for all kinds of AI infrastructure now use, just as one example.
Microsoft Games Studio will do whatever they need to make shareholders happy, and if Steam gets in the way of XBox handhelds, maybe a change of heart will take place.
Who knows, Valve is the one that needs to worry, not Microsoft, they control the technology.
What can Microsoft even threaten? No more Fallout 76 and Halo Infinite? Linux is banned from Bedrock Edition? They'll re-cancel the Perfect Dark reboot? Every punishment I try to imagine is like death-by-pillow-fighting.
Microsoft studios can eventually only be available in non-Steam stores for example, like PS, XBox console and PC app store.
Nay a single consumer will see it that way, but rather see Xbox getting in the way of Steam. An Xbox handheld which you can't run your Steam games on will probably be about as much a failure as the Series S and X, or an equivalent successor, which I can't see any way for Microsoft to turn the tide with, and can't imagine Microsoft not knowing that.
> Who knows, Valve is the one that needs to worry, not Microsoft, they control the technology.
Game devs aren't going to follow Microsoft's every whim and desire, and Microsoft can't rugpull current technologies out from under neither Valve nor game devs.