This simple tutorial shows how to remove the focused window’s top bar app menu in Ubuntu 18.04 and (or) Ubuntu 19.10.
Gnome desktop by default has an application menu on top bar, next to “Activities”, for the focused application window. And if you find it useless, like me, here’s how to disable or remove the menu.
1.) For Ubuntu 18.04, simply search for and install Gnome Tweaks in Ubuntu Software.
And there’s an option to disable the top bar app menu in the “Top Bar” pane of Gnome Tweaks utility.
2.) For Ubuntu 19.10, the Gnome Tweaks option is not available any more. There’s however a Gnome Shell extension can do the job.
Open Ubuntu Software, search for and install Remove App Menu Gnome shell extension.
Though the extension is quite old, it works in my case in Ubuntu 19.10 once installed.