Interesting! News to me, the Microsoft documentation I was looking at didn't make any mention of GPU-P but that seems like a perfect fit. Was looking at a old Grid K2 to avoid Nvidia licensing and direct pass through for high use VMs but as we're full Microsoft (for better or worse) their solution probably makes more sense.

edit - apparently while this works on Server 2019 direct pass through is the only officially "supported" option. I wonder if this is a stepping on partners' toes sort of situation?