History
Chrome established its dominance on the desktop before Edge, when Internet Explorer was the Microsoft browser and even the most dedicated Windows shops and users fled to Chrome, which was at the time, the most usable browser. (Sorry, Firefox, I was using you but I was also using a lot of swear words)
Chrome surpassed IE's top spot in 2012. Firefox gained second place in 2015. By 2019 Safari was beating it.
By then it was a case of "if it works, don't touch it."
Biting the hand that feeds IT
