This was the only one I could think of a good reason to track. I immediately thought of all the grandparents and tech illiterate people who'd probably implode if they had to pick .exe vs .deb vs .dmg/.app (I actually had to look up what MacOS uses...) vs etc. And don't even try to have them guess intel vs amd.

Automatically guessing the operating system saves us tech people from having to figure out they downloaded a file for a completely different OS.