> Tere are projects like this https://github.com/jamesstringer90/Easy-GPU-PV that you can use to setup a Hyper-V machine to use the same paravirtualization.

> Automatically Installs Windows to the VM

This seems to be focused on Windows guests. I need this for Linux guests.

May be when Hyper-V will make this usable out of the box for any guests, I'll take a look. And if it's something shareable, may be VirtualBox should pick that up.