Ultimately, Canonical intends to replace all of the menus in Unity applications with this newfangled HUD. In this new version of Unity, drop-down menus have been replaced with a search box.

In this new version of Unity, drop-down menus have been replaced with a search box. You simply type what you're trying to do and the application gives you the commands that align to your intent.

Just a little PSA... Unity finally will have the option to get the Global Menu entries to be shown all the time, as opposed to only on mouse over. The option surfaced on the 15.04, but it has been ...

You can find more information about this in our data protection declaration and the external source’s privacy policy. Currently, Ubuntu uses a global menu bar, rather than separate in-app menus.