Comment by theYipster

vm-curator, a FOSS Rust TUI for Linux QEMU-KVM VMs, now supports full GPU pass-through in its v0.2.0 release for near-native GPU performance suitable for high end gaming and demanding GPU-centric workflows. This works for both NVIDIA and AMD cards (and should work with Intel as well,) and it can create and run both multi-GPU and single-GPU setups!

Testers and feedback are wanted very much: I only have one hardware configuration I can test on, and I'd be grateful for anyone to try it and report their experience--especially for multi-gpu pass-through (as I can only test single at this time.)