Hi, in this post I made a project to showing you how we can make a uwp app that is responsive in various positions of size. Also this project helps you to create an app that when you choose a option in the small or larg size, screan will show a one page or two like Windows 10 Mail Application and you can learn how can we set back button (a custome Button in app or Software/Hardweare in Mobile or Tablet or in Desktop view).
If you have problem or feedback leave comment or PM to my telegram: @ormansf