What you describe can be achieved by the app opening the page via the system browser. I don’t see any benefit of using a tab in the app instead. The swipe-left

What you describe can be achieved by the app opening the page via the system browser. I don’t see any benefit of using a tab in the app instead. The swipe-left gesture at the bottom makes app switching super fast, making rapid switching between app and page a better experience than dragging and re-opening.