@lcamtuf also called the Dunning-Kruger effect, it is actually a thing as you may know. Check out: https://www.britannica.com/science/Dunning-Kruger-effect
Dunning-Kruger effect | Definition, Examples, & Facts

Dunning-Kruger effect, in psychology, a cognitive bias whereby people with limited knowledge or competence in a given intellectual or social domain greatly overestimate their own knowledge or competence in that domain relative to objective criteria or to the performance of their peers or of people in general.

Encyclopedia Britannica