a 10 gig nic does not need a gn5 or even more than x2 or x4 gen3 tho 
the conversation was about x8 gpus
i also pass a nvme x4 gen4 and a x4 gen3 nic to my vm (:
Hey, wait a second, what’s this talk of “simple” solutions? Complex setups “because I can” are basically my hobby at this point! lol
No idea what you mean. Right click? Never seen a desktop environment with such an option, except maybe a PopOS laptop that I barely use. But also I’ve no idea how this would work, usually there’s a lot of effort made towards blacklisting drivers and basically making the GPU as invisible as possible to the host so it can be passed to a VM.
this is the real old school way.
take a look here for example:
and Crtl+F for: Lets practice reattaching it so we can play some games on Linux
the way for host or vm use of dgpus is to reattach them to the driver or vfio-pci depending on the way you want to use it.
You can even automate this set if you use hooks or start scripts for your VM 
the reason you probably never saw this option is because you always have your dGPUs in VFIO-PCI
If Linux sees that there are multiple GPUs like IDG and dGPU it offers you “launch on discreet graphics” or something along those lines.
Apparently its a 2020 thing:
2 Likes
F12a Update (: