SwiftUI's DocumentGroup seems completely broken on iOS.

I've just tried on iOS 26 beta 9 with the Document App template and it the results are horrendous.

- The app adds the back buttons (to return to the document browser) and the document title to any navigation bar in the app automatically.
- You cannot navigate through a split view. The back button in the detail view brings you back to the document browser.

How should anybody use this?
And this should go public soon?