since this post is escaping containment and what im referencing is long past: the issue i'm referencing is like.. spice basically isn't able to draw the mouse cursor over the virtual machine's screen for some reason when windows has more than one attached display adapter but it seems to do the guest-side hiding of the mouse cursor that it would normally do? something like that?
it caused an issue for citrix users and i think the fix for it that they implemented was to specifically blacklist/whitelist the citrix display adapter in some spice/virtio guest tools component which didn't address the root of the issue but they closed the issue nonetheless. i did not really want to register an account on their gitlab/whatever instance so i kinda just left it there at knowing what the problem even is
i had to do weird things to get the virtual display adapter to work alongside the passed through GPU in the first place though, i'm just kind of asking for problems with that