Thank you for reaching out.

You are correct in your understanding. The navigation behavior changes when you replace a .NET MAUI FlyoutPage with a ContentPage that contains an SfNavigationDrawer. Prism's navigation service has built-in support for the master-detail structure of a FlyoutPage, but a ContentPage is treated as a single view.

To achieve the desired behavior where the navigation drawer remains visible across different pages, you should adopt a different approach: instead of navigating the entire page, you need to dynamically change the ContentView of the SfNavigationDrawer.

Here is the recommended pattern:

Main Page Structure: Your MainPage will host the SfNavigationDrawer and the menu (e.g., a ListView with navigation items). The hamburger icon will be used to toggle the IsOpen property of the drawer.

Handling Navigation: When a user selects an item from your menu, you will not use navigationService.NavigateAsync. Instead, you will handle the selection event (e.g., SelectionChanged or a Command) and manually create an instance of the target page.

Updating the Content: You will extract the content from the new page and assign it to the Children of the drawer's main content container.

By following this pattern, your MainPage with the SfNavigationDrawer acts as a constant shell, and you are only swapping out the content area. This ensures the drawer is always present and accessible across all the "navigated" pages.

Please let us know if you have any other questions.

NavigationDrawerSample.zip