I was really surprised by the fact that CTRL + ALT + left/right arrow can switch workspaces in QubesOS 4.2.3. Since most QubesOS users are running laptops with 1080p screen resolution, it might be especially interesting to find a good way to map this shortcut to the three-finger swipe gesture on touchpads. This would allow you to have two full-screen application windows on two virtual workspace and switch between them as easily as GNOME.
As far as I know, such a touchpad gesture is not natively supported by XFCE, and QubesOS has its own overhead in many cases. Has anyone found a solution to make the swipe gesture possible? Would you agree that such a feature is worth pursuing?
Maybe install touchegg in dom0? That is scary…