Does the dash open pressing the super (windows) key, or when the mouse touches the top left screen corner (hot corner)?The menu bar is there but no activities options.
Press the Alt + F2 keys, enterHow to access the menu as screenshot?
gnome-tweaks
, but the Application Menu setting doesn't affect the Activities button. When suggesting, Alexander88207 might missunderstood the problem. If I'm not mistaken the Activities button, together with the panel, is part of the gnome-shell and there is no setting to turn it on or off, at least not that I'm aware of. It can be replaced with a Application menu from Tweaks, Extensions though, or 3rd party extensions.