As I understand it, the chief reason most people use MS-Windows is because that's what the computer was delivered with, as that's what companies demand for their staff; and the full-fat reason why companies still tolerate and support MS-Windows is because their companies need MS-Office in general, and Excel in particular .... otherwise, for some mysterious reason, their magic spreadsheets break. End of rant.

Meanwhile, back at web browsers: I read once that Netscape found it necessary to use the Internet Explorer icon for their own browser in certain far-east markets (China?), as the locals wouldn't recognise the standard Netscape icon as representing a Web browser. This presumedly was in a market where characters are pictograms, and Microsoft and its browser's icon had got there first.