Yeah, well maybe you should put this into your graph as a choice. You might not like it but Ubuntu still has a major support for anything Linux related. Any manufacturer or software development - if they support Linux, there is a high chance that they mean basically Ubuntu, quite often they tested it just there. This is a HUGE advantage for any beginner.
Beginners don’t care about behind the curtain stuff, they just want things to work. And you might not like Canonical but Ubuntu does this
I never thought I’d witness the release of 3.0 in my lifetime