Comment by kube-system

Most of the people who are just looking at browser statistics for the purpose of managing a website are using simple tools that just simply collect data from user agent strings. Determining browser from this isn't 100% straightforward, but it's enough to give website operators a rough idea of what browser to target. This data was more important in the days when everything wasn't Chrome/Android/iOS, and it actually mattered what version of IE your users were running.

If you're doing fingerprinting for tracking purposes, you're gonna be tracking a lot more in-depth data.

But in the end, there are pretty much three types of Internet user today: 1. The person who uses the default browser installed on their device. 2. The user who always downloads Chrome when they first get a new computer. and 3. Nerds who do something else.