What do people think of frameworks like https://jquerymobile.com https://jquerymobile.com and similar? I tend to think it's good when running in a browser but

What do people think of frameworks like https://jquerymobile.com https://jquerymobile.com and similar? I tend to think it's good when running in a browser but not when it's made mobile web app capable and running full screen without native controls. Unless it's a super simple single page app. At the other end there are things like Instagram where you basically can't do anything on the website (can't sign-up, can't upload photos). Everything requires the app.