In fairness, a lot has also changed/churned in Windows desktop UI development, iOS development, and Android development over the same time period. (I know a lot

In fairness, a lot has also changed/churned in Windows desktop UI development, iOS development, and Android development over the same time period. (I know a lot less about the latter two, but didn’t they at least both change languages and see the significant rise of PhoneGap/Titanium and then React Native and then Flutter?) And those are all ecosystems that, for better or worse, have a single dominant corporation lording over it.