Yes. It's a way to have a "viewer" of the VMs screen that has as little latency as possible. My understanding is that this is achieved by configuring shared mem

Yes. It's a way to have a "viewer" of the VMs screen that has as little latency as possible. My understanding is that this is achieved by configuring shared memory between host and guest. It uses some nvidia capture api/sdk to capture the screen of the guest and write it to that shared memory. It has a server component running on the guest and a client component running on the host. I've been using it for a while with a windows 11 guest. It works but I wouldn't say it's production ready as I often get crashes. Though it's usually the server/windows component that crashes and not the client. If going for a passthrough setup I'd generally recommend setting up evdev. It allows you to switch keayboard and mouse input to the vm by e.g. pressing both Ctrl keys. I then just have to change the video input on my display.