The only thing I liked about unity was the HUD that allowed you to search through application menus by typing the setting you were looking for. Do you know if there’s anything offering that functionality for Gnome3?
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?