What I would like is when you click a button it leads you to a new screen and on that new screen it will open a link showing some website/article and when clicking the other buttons it will also open other different websites/articles. I barely have any experience in coding so help is greatly appreciated!
First of, you don't need multiple screens. You can do everything in one screen with just one webviewer.
Switching screen is not how @HQ2000 showed you. Switching forth and back without closing a previous screen will lead to memory problems. You could do it like this
But like I said you don't need that. Stay in one screen, one webviewer and some arrangements that you make visible and invisible if necessary.