Graphics
Paravirtualized Graphics only work for Apple Silicon Macs. https://github.com/utmapp/UTM/issues/3491
Default QEMU VirGL backend on macOS is virtio-gpu-gl-pci.
On Intel Macs, UI will freeze after host recovers from sleep. If you’ve encountered this, switch back to virtio-gpu-pci.
macOS Guest
macOS Installer can be downloaded with https://github.com/ninxsoft/Mist.
openSUSE Guest
The installer requires a serial device. You can remove it afterwards. See https://github.com/utmapp/UTM/issues/5251.