Web Apps are handled by browsers. But it is mentioned as iOS update, because the only allowed browser in iOS is Safari, so only Apple is able to control, how go

Web Apps are handled by browsers. But it is mentioned as iOS update, because the only allowed browser in iOS is Safari, so only Apple is able to control, how good web browsing in iOS is. All other iOS "browsers" as Chrome, Firefox or Edge, are just wrappers around Safari.