
When super is pressed again during the overview transition, we shift up to the app grid. That means that the feature currently doesn't work when animations are disabled (like in a VM), because there is no transition in that case. Address this by adding a time-based fallback in that case, i.e. shift up when a second super-press occurs within 250ms after the first one. https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/4121 Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1811>