This is the kind of stuff that sounds believable when you start programming. I can tell you as someone that read HN since high school and invested time in buyinh a t480, trying out distros, and learning emacs and vim I can say its just another hobby.
You can spend days making the best dotfiles and learning every CLI tool that doesn't mean you understand the systems you work on any better than anyone else it just means you have programming related hobbies outside of work which is a much better explanation for the correlation that you're observing. I don't know why we are inferring causation there.
Your choice of tools is not that important, but learning the features of those tools is important.
Also on giving up magic tools, as a FANG engineer you interact with many magic tools every day which you scarcely understand. It would be better if you did understand those tools as tenured FANG engineers do but as a software engineer at a big company picking your battles is the most important skill you can learn.