☝️ Jean-David Moisan
That's been my experience too working as a professional software dev. Going in, I expected everyone to have their own side projects, but most people seemed to not care about programming outside of work. Though going back further, while in university I was surprised how few people had done any coding before joining. (Not that there's anything wrong with any of that.) If you want to try something fun, join the MonoGame community, and try to make a simple game with it.