[Android] Fullscreen not filling space when hiding Navigation.

Description

When I hide both the Navigation Bar and Title Bar the spacer where the bottom navigation bar remains filled with unusable space. This started happening after my last VS update.

Steps to Reproduce

1. Create a New MAUI app
2. Under Platforms -> Android -> MainActivity.cs add:

protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        var uiOptions =
            SystemUiFlags.HideNavigation |
            SystemUiFlags.LayoutHideNavigation |
            SystemUiFlags.LayoutFullscreen |
            SystemUiFlags.Fullscreen |
            SystemUiFlags.LayoutStable |
            SystemUiFlags.ImmersiveSticky;

        if (Window == null) return;
        Window.DecorView.SystemUiVisibility = (StatusBarVisibility)uiOptions;
        this.Window?.AddFlags(WindowManagerFlags.Fullscreen);
    }

1. Under MainPage.xaml->MainPage.xaml.cs add:

 protected override void OnAppearing()
    {
        base.OnAppearing();

        NavigationPage.SetHasNavigationBar(this, false);
        Shell.SetNavBarIsVisible(this, false);
    }

You will notice the titlebar and the navigation bar are completely gone, but the space where the navigation bar was is now purple.

Android 9

Android 12

You cannot force this space to be filled.

Link to public reproduction project repository

https://github.com/TannerDBlack/MAUI-Fullscreen-Issue-Example

Version with bug

6.0.312

Last version that worked well

6.0.312

Affected platforms

Android

Affected platform versions

Android 9, API 28; Android 12 API 32

Did you find any workaround?

No

Relevant log output

None

[TannerDBlack]

@japarson @PureWeen This is not fixed. So the actual difference in the behaviors listed above, .NET7 is now a white bar that is still unusable space.

Fresh app with hidenav set and background set to Orange to show the issue:

Here is my app after moving to NET7, For record the bottom is supposed to be a gray bar like the top with buttons.

[aureo91]

I noticed the same issues on net7. Change background color allow to see the problem.