Debian host, Ubuntu 18.10 and Win10 Pro guest VMs using VFIO passthrough for a USB controller and GPU. I use the Ubuntu VM as my daily machine, with an RDP sess

Debian host, Ubuntu 18.10 and Win10 Pro guest VMs using VFIO passthrough for a USB controller and GPU. I use the Ubuntu VM as my daily machine, with an RDP session across to the Win10 VM when needed (I work remotely and my day-job is heavily MS focussed). I run a fullscreen RDP session taking up a full virtual desktop, so I effectively just flick between the two OSs with a keyboard or mouse shortcut. On the rare occasions that I require GPU acceleration under Windows I have a second GPU passed to that VM plugged into a second input on my monitor, and a script to remap the USB controller. Basically dual-booting but without shutting down either :)