Comment 0 for bug 1990488

The current version of udev.postinst in Ubuntu creates four system groups:

 * kvm
 * input
 * render
 * sgx

kvm, input and render were added to reserved-usernames when user-setup
1.83 was released. sgx however, was added to udev.postinst later with
systemd 248-1 so it did not make it to reserved-usernames at the time.