it is required to be an unoptimized Safari instance underneath, with zero access to any sort of GPU or Javascript optimization) but only a small fraction of han

it is required to be an unoptimized Safari instance underneath, with zero access to any sort of GPU or Javascript optimization) but only a small fraction of handsets sold have been iPhones. 3rd party browsers have had access to WKWebView for a while now, so they get almost all the goodies Safari has access to. You can read all about it at "New Chrome for iOS is finally as fast and stable as Safari"--https://arstechnica.com/gadgets/2016/01/new-chrome-for-ios-is-finally-as-fast-and-stable-as-safari/ https://arstechnica.com/gadgets/2016/01/new-chrome-for-ios-i.... The iPhone has a little more than 45% of the smartphone market in the United States, which is not nothin’: https://www.statista.com/statistics/236550/percentage-of-us-population-that-own-a-iphone-smartphone/ https://www.statista.com/statistics/236550/percentage-of-us-.... And there are over 1.5 billion active devices in the world--and growing: https://www.macrumors.com/2020/01/28/apple-1-5-billion-active-devices-worldwide/ https://www.macrumors.com/2020/01/28/apple-1-5-billion-activ... The number of devices running the most current version of Android is pretty small compared to the 80-90% of iOS devices that run the most current operating system. That matters for both web developers and native app developers. For example, Android 9.0 Pie is only 32.43% of the installed base of Android users. Which means 60%+ are older versions that don't support the latest web features, etc: https://gs.statcounter.com/android-version-market-share/mobile-tablet/worldwide https://gs.statcounter.com/android-version-market-share/mobi... On the other hand, iOS 13 is installed on 92% of all iPhones sold in the last 4 years: https://www.imore.com/ios-13-has-been-installed-92-iphones-released-last-4-years https://www.imore.com/ios-13-has-been-installed-92-iphones-r... Anyone who’s website is used by US smartphone users by definition has a lot of iPhone customers.