Phoronix published The Current Windows 10 vs. Linux Browser Performance For Google Chrome + Mozilla Firefox A quote from the article:

Last week were tests looking at the Firefox/Chrome web browser performance on eight Linux distributions but how does the situation look if adding Microsoft Windows 10 to the equation? Well, this article addresses that question as we looking at how well Chrome and Firefox compare Windows 10 vs. Linux on the same system and using the latest releases of these web browsers.

 The Current Windows 10 vs. Linux Browser Performance For Google Chrome + Mozilla Firefox