Android and iOS specifically are not keen on creating a more powerful browser experience because it hurts their app revenues. Mobile APIs for apps are fairly m

Android and iOS specifically are not keen on creating a more powerful browser experience because it hurts their app revenues. Mobile APIs for apps are fairly modern. The limited nature of Mobile experience + the more modern APIs and integrated build/deployment/storefronts make those a much easier choice than otherwise on mobile. Desktop app frameworks are old and complicated, and there aren't very good options for apps in between 'web' and 'major installs'. Desktop UI generally require a lot more component types and layouts, and frankly there is no framework that has conquered that domain very well. Every single desktop UI framework falls quite short.