As a hiring manager, I never cared about side projects, or Stack Overflow or Kaggle scores. The most a side project github link would tell me if it was big or not. That’s it.
I’m not going to go through and read a bunch of random code by myself, when I can just ask a couple of questions, and get the same information quicker. They are just too many resumes to read.
Seriously, all side projects tell me is that you spend your free time coding, instead of hiking, or some other hobby.