Been noodling around on my ThinkPad X220 today. Originally it had #Ubuntu 14.04.5 installed then upgraded through 16.04, 18.04, all the way to 19.04. Still rocking Unity which works brilliantly on this 8 year old machine. :)
@popey
Unity is pretty decent. I liked in 14.04, but I haven't used it in a long time.
@igeljaeger