Nope sorry, this is my first foray into running any kind of serious virtualization. FWIW most of the guides I've followed are for the 10xx cards and they seem to be pretty much the same as the 2080ti, with the exception of there being 4 devices on the card, not 2. I used VFIO-PCI CFG to bind all 4 devices so I can select the extra 2 devices (usb stuff) in the VM GUI config.
I should also note that none of this works for me on 6.8.3, I'm running 6.9.0-beta25.