Safari is A) only available on two operating systems, both owned by Apple, B) is mandated on one of those OSes (iOS), which C) just happens to be their most pop

Safari is A) only available on two operating systems, both owned by Apple, B) is mandated on one of those OSes (iOS), which C) just happens to be their most popular OS. I don't think it's very surprising that share of Safari for browsers across all OSes closely matches the share of iOS. Safari on macOS is only about 1/3rd of an OS that has 6 or 7% of the market, so you're only going to get about 2 points there. Firefox on macOS mirrors the rest of the market. Chrome is #1 on all platforms except iOS, where it just literally does not exist. Safari's relative popularity over Firefox is due to lack of choice on iOS. So no, I don't think you can make that claim that technical merit does not matter. If Apple were forced to allow other vendors distrubte their browsers on iOS (and they should be forced to), you would not see any uptick in Firefox's numbers, but a relatively big uptick in Chrome's numbers. I'm guessing like 10 points.