I tried this out yesterday and while it did allow a Windows 10 VM to boot with an nVidia Quadro card on the latest kernel 5.15.35-3, I had the VM crash two times:
May 19 12:03:07 pve-x10sdv QEMU[24492]: KVM: entry failed, hardware error 0x80000021
May 19 12:03:07 pve-x10sdv QEMU[24492]: If...