I have ribbon controls, but I don’t have the menu above that. Also, Libre Office (I use Writer mostly but the launcher also) has made itself full screen, and that interferes with the panel (which I keep on the left side). I have had to resort to Alt-F4 to quit. How can I get menus back? Will I be able to get Libre-office to respect the open panel?
Press random buttons. Start with the F keys. Maybe research how to hide things in libre so you know the keys to unhide them.