Comment by pjmlp

And after a second look, they are built on top of DirectX anyway.

> Along with a kernel-mode display driver, graphics hardware vendors must also write a user-mode display driver (UMD) for their display adapters. The UMD is a dynamic-link library (DLL) that the Direct3D runtime loads.

https://learn.microsoft.com/en-us/windows-hardware/drivers/d...