[georgyo]

This is heavily skewed by iOS being used for USPS shipping.

The following is for people logging into government services, it is a better source for metrics on browsers/OS usage.

https://analytics.usa.gov/general-services-administration/

[substructure]

That site shows 113.1 million visits in the last 90 days with 47.2% being Windows and 1.2% linux. (47.2/1.2) = 39.3 windows users for every linux user.

I agree that it is skewed in a number of ways. I just wanted to estimate a lower bound.

Thank you for pointing out a better source of data for my use case.