[whowouldathunk]

Not really, that's how Windows works too since Vista.

https://msdn.microsoft.com/en-us/library/windows/desktop/aa9...

And it's what enables effects like this in Windows 10:

https://docs.microsoft.com/en-us/windows/uwp/design/style/re...

Disclaimer: I work for Microsoft

[teraflop]

I don't think what Windows provides is really comparable. By my understanding (and the documentation you linked seems to back this up) WDM is responsible for taking 2D framebuffers from applications, and compositing them into a (possibly 3D) scene. Fuchsia's Scenic operates uses a 3D scene graph as its input.