Workaround a bug regarding focus on Wayland, cf: https://bugzilla.gnome.org/show_bug.cgi?id=766284 https://bugzilla.gnome.org/show_bug.cgi?id=786455
This is a companion discussion topic for the original entry at https://copr.fedorainfracloud.org/coprs/matmaul/gtkfix-f29/