Well, the truth of that is quite a bit different than how you put it, and it’s also more carrot than stick. There were efforts to make Linux versions of games after this adoption of DirectX, and they didn’t take; I have a Linux disc for Unreal Tournament 2004 that came in the same box as the Windows one. What Microsoft did surely sucked for everyone, but fortunately, we live in a world where their recent efforts to do similar things aren’t working. They didn’t manage to siphon PC gaming over the Windows Store, and Windows handhelds are demonstrably worse and sell worse than the Linux ones. Consoles’ walled gardens are slowly crumbling from natural market forces to the openness of PC, and that includes a PC where almost all of those games work on Linux.

Microsoft does not have a position of strength here right now, and they know it, so they instead pivoted to just being an enormous publisher with a subscription service that’s lucrative but has already plateaued.