The best thing about Unity is that now it will never change for better or worse and still works with Ubuntu 20.04. It's fairly minimalist and frozen in stasis like I wish Apple had done with the SnowLeopard UI.
That was pretty good, actually.
For all its flaws, Unity really tried to offer an unified desktop experience.
Each of the menu bar options should be searchable, and the search box will open the requisite menu to the correct branch/leaf and highlight it for you.
Despite these standards we still don't have this feature widespread. It's a pity.
For example, I want to change the printer settings in libre-office writer. That's under the "File" menu. Given that it has nothing to do with files, I don't look there. On a Mac I can search all application menu items from the "help" menu. Why can't I do that with all GTK3 applications? Or all Gnome applications if it's out-of-scope for GTK?