Bring Back Old App Launcher

I have updated from Ubuntu 21.04 to 21.10 and I don't like the new App Launcher. I want to bring back the launcher that darkened my background and put the virtual desktops on the sides instead of on the top. How do I do it?

Ubuntu 21.10 uses Gnome Shell 40. That version of Gnome changed from vertical to horizontal workspaces. A Gnome Shell extension, Vertical overview by Ralthuis allows to bring back the old layout.

The background of the overview now is black by default. If you want to revert to an effect where you see your desktop darkened, you can use the extension Blur my Shell by aunetx.