The attached screenshot shows the problem after installing Ubuntu 22.04, updating and restarting the guest. I suspect that this is a problem of the host viewer rather than the guest because the issue is present in the GTK viewer (-display gtk) and not in the SDL viewer (-display sdl). Note that the host is Ubuntu 22.04 (QEMU version 6.2.0).
The attached screenshot shows the problem after installing Ubuntu 22.04, updating and restarting the guest. I suspect that this is a problem of the host viewer rather than the guest because the issue is present in the GTK viewer (-display gtk) and not in the SDL viewer (-display sdl). Note that the host is Ubuntu 22.04 (QEMU version 6.2.0).