Great the speed of getting the list of updates is unbelievable. Thanks.
Sorry, but I realized that it does not work for me fully. The UI is non-responsive - any attempt to use right mousclick for context menu ends up with not context menu showing and a line is dropped into journalctl:
Mar 06 13:19:35 elefant gnome-shell: Buggy client caused popup to be placed outside of parent window
At first, I only used already created VMs, but now I wanted to delete and create new VMs and it is almost impossible with the UI as it currently behaves.