patrick@patrick-pc:~$ dpkg -l | grep mutter
ii gir1.2-mutter-4:amd64 3.32.0+git20190410-1ubuntu1 amd64 GObject introspection data for Mutter
ii libmutter-4-0:amd64 3.32.0+git20190410-1ubuntu1 amd64 window manager library from the Mutter window manager
ii mutter 3.32.0-1 amd64 lightweight GTK+ window manager
ii mutter-common 3.32.0+git20190410-1ubuntu1 all shared files for the Mutter window manager
patrick@patrick-pc:~$
patrick@ patrick- pc:~$ dpkg -l | grep mutter mutter- 4:amd64 3.32.0+ git20190410- 1ubuntu1 amd64 GObject introspection data for Mutter git20190410- 1ubuntu1 amd64 window manager library from the Mutter window manager git20190410- 1ubuntu1 all shared files for the Mutter window manager patrick- pc:~$
ii gir1.2-
ii libmutter-4-0:amd64 3.32.0+
ii mutter 3.32.0-1 amd64 lightweight GTK+ window manager
ii mutter-common 3.32.0+
patrick@