Oh, almost forgot, I actually wrote about my process getting this set up about six months ago:
https://tedium.co/2024/04/08/hackintosh-proxmox-vm-experienc...
On top of the GPU, I pass through a USB-C card. I did have some problems with getting the WiFi card I have working but I have it plugged in via Ethernet anyway so not much of a problem.
My main reason for this is to have an easy way to access graphics software in the relatively rare cases I need access to Photoshop, Illustrator, or InDesign specifically.