I heard Ubuntu 20.04 still shipped with Unity as a package, but I suppose you can't get it just installing it.

After quite some time using 14.04, I miss Unity. In fact, I always liked it, despite all the criticism it got. Compared to GNOME 3, I think those "small things" were better, like having the pidgin icon turn blue in the top right corner of your screen whenever there's a message. Now you have a popup notification every one can read if you're sharing your screen, but at the same time you can easily miss it if you weren't paying attention. The same happens with the Thunderbird integration, etc.