I'd like to switch from fullscreen in qemu/kvm Virt Manager back to the most recently used window on the main host's operating system (just like alt-tab), but I haven't yet found a solution that works. ctrl+alt+f doesn't work (it just launches an application inside the virtual machine).
I don't want to exit fullscreen mode, rather I would like to alt-tab back into the host and have the option to alt-tab back into the full-screen virtual machine.