

Google start with open source so they can use open source tools and get a lot of work for free.
But they use the famous Elbrace, E tende and Extinguish. See the things they are doing with the web with Chrome.
https://en.m.wikipedia.org/wiki/Embrace,_extend,_and_extinguish
I don’t get why people prefer to go to an unsafe version of windows instead of trying Linux. Nowadays there is many friendly distro.