Ah, my mistake, it should say "server-driven," which is more accurate. The view isn't actually rendered on the server, it just seems to be sent over in a declarative format, which the client then renders into a native view.
like HTML?
> which the client then renders into a native view.
A WebView?
RN isn’t just “HTML in a webview” like PhoneGap or Cordova: elements are actually rendered as native UI components. E.g., a <Text> element becomes a native UILabel on iOS and a TextView on Android.