Unity usage?
0bv Unity was default on the base Ubuntu distro for quite a while, so would have reasonable usage from those who leave a system as default.
Like many people, I have some Ubuntu based systems, but its ages since I actually installed a "standard Ubuntu" - I mainly use Lubuntu (as its a small disk footprint, plus undemanding on resources so a good way to allow geriatric hardware (with (compared to today) small disk, little RAM & weedy CPU) to be useful for a few years longer)
I'm hoping someone has some stats on what proportion of Ubuntu users (across all distro flavours) actively use Unity - would be interested to see what percentage of users are affected. Desktop changes often irritate people if they have got used used to desktop Y and so learning different things on desktop Z is an unwanted choren