I do mainly macOS and iOS development. In the last 20 years, I don't remember ever doing a fresh install because I just haven't needed to. I simply install (well update) macOS and Xcode. That's it. That's everything I need to do my development. Honestly if I needed more, I don't think I'd bother anymore. I'm amazed at the sheer number of extra crap developers on other platforms are forced to install just to be productive.