In my experience, people who use Intellij family of IDEs have very limited understanding of how anything in their computers work. They are hired to "write Java" or something similar, and beside "writing Java" they know virtually nothing and aren't expected to know anything.

I used to work for a large company in the ops department, where a significant portion of my day was spent walking between cubicles and fixing the dev. environment of Intellij IDE programmers. Most of them didn't even know how to find the project they worked on in the filesystem w/o using their editor. The tantalizing task of opening a file with unknown extension was way too much to ask etc.

They would often mess up something in the version control too, using Intellij integration tools, which are really, really bad. But, I don't know whom to blame in this instance. Both the user and the tool were of extremely low quality.

So, if, eg. their Maven build had some sort of an interaction with Git, and they messed up something in their local repository, all work would come to a grinding halt, because they had no idea how to even begin to understand what went wrong.

It's a kind of job where you begin to lose faith in humanity very quickly :D