
We used to keep the workspace switcher slid out when the user made use
of workspaces. This was changed in commit 2d84975
to give more space
to window previews, but it turned out to make the switcher quite a lot
more difficult to interact with (rather than only being a question of
discoverability). So go back to the previous behavior.
https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/161