Changes

Hypervisors don't have direct access to the graphics hardwarewith exception to Virgil/Virtio GPU available in QEMU (only works with Linux guests), which means graphics card emulation is less than ideal for video games that use 3D APIs. Every hypervisor has a different approach to handling 3D graphics; none are by any means performant enough to run modern video games without resorting to hardware passthrough. Support for OpenGL is slightly better than Direct3D since it doesn't have to be reverse engineered, but most Windows games (including ports) use Direct3D.