Comment 4 for bug 1655111

Interesting, I definitely could start VMs I'd have found that issue with all the tests - so would have Debian.

As I listed above the path in the rules always was /usr/lib while the binary always was in /usr/lib/qemu. What really changed was which tool this rule applies to. These files are
Could you elaborate on what you meant with "as in the replaced configuration file it was correct"?

These files are considered conffiles, so if you modify them they are kept as-is. If an update would place a different content it would show you a diff and ask you what to keep.
You can run the following to identify any modified files
$ sudo dpkg -L libvirt-daemon-system
If there is one of the apparmor files in it please attach it here.

Eventually the bad path has to be fixed, but since you are the only one with a visible impact I'd want to understand that more before changing anything.