Have you ever played Windows games on the 1980's?

That would be a first.

What matters is where money is, and how much of those games trace back to Microsoft owned studios.

Good example with mobile games though, as it is a good example of Valve's failure to capitalise on 80% of mobile games being run with OpenGL/Vulkan, on a Linux like platform, and yet they have to translate Win32/DirectX, as means to get games on SteamDeck.

The PC’s share of gaming, according to EA, by dollars spent, is 23%, the second largest slice behind iOS, larger than any of the consoles

Guesswork is rarely helpful