I’m not really convinced. If everyone is a little overconfident (in the sense that they think they’re above average) then the least competent are indeed the most mistaken about their relative competency. Which is (I think) what most people—at least ones not trying to use it as a debate tactic—understand Dunning-Kruger to be.
https://www.psychologytoday.com/us/blog/how-do-you-know/2020...