In Proxmox they have VirGL-GPU and Virtio-GPU. They allow VMs to pass work to the GPU without being dedicated to one VM. I don't think gaming was the intended use case and don't know what kind of performance you would get. My uninformed guess is that it would not be great.
Yeah this is the answer. I was about to list off some movies but realized I actually watched and finished those. I couldn't even bring myself to finish anything after Endgame besides the last Guardians of the Galaxy movie.
Just run Pi-Hole in a Docker container on your machine. Point your nameserver to localhost and reap the benefits.