Generated via ublue's countme script https://github.com/ublue-os/countme/blob/main/growth_global.svg
Here is Fedora's upstream graph to compare:
Eh, on something as customizable as Linux where the solution to problems can often be "run this line in the terminal", I do believe that a new user can mess up their configuration. I remember Linus from LTT having to deal with a few problems while doing the challenge.
It's certainly also the fact that everything you need is already there out of the box, no need for tinkering to get the GPU drivers installed.
The two things are probably both true