Hiding titlebar with SetBorderAndTitleBar(true, false) cause maximizing the window hide taskbar

[HO-COOH]

Describe the bug

When the window have a titlebar (whether or not ExtendsContentIntoTitleBar() ), double clicking the titlebar / calling presenter.Maximize() / win+up key, maximize the window as expected. But after hiding the titlebar with presenter.SetBorderAndTitleBar(true, false), now you call presenter.Maximize() / double clicking the titlebar / win+up key, the window goes fullscreen, hiding the taskbar.

This is such a weird behavior that goes undocumented.

Steps to reproduce the bug

1. Hide titlebar with this code in window constructor

        var presenter = (AppWindow.Presenter as OverlappedPresenter);
        presenter.SetBorderAndTitleBar(true, false);

2. Maximize the window, with win + up key, now the window unexpectedly becomes fullscreened, hiding the taskbar. Using code to maximize the window have the same issue.

Expected behavior

The window should only maximize within the work-area of the monitor, leaving the taskbar visible.

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.5.3: 1.5.240428000

Windows version

Windows 10 (1809): Build 17763

Additional context

No response

[github-actions]

Hi I'm an AI powered bot that finds similar issues based off the issue title.

Please view the issues below to see if they solve your problem, and if the issue describes your problem please consider closing this one. Thank you!

Open similar issues:

• Window Maximization Behavior Consistency Issues (#9427), similarity score: 0.81
• Cannot maximize vertically when ExtendsContentIntoTitleBar = true (#8966), similarity score: 0.79

Closed similar issues:

• OverlappedPresenter.IsMaximizable should disable extended title bar double clicking (#8846), similarity score: 0.82
• A WinUI3 window which IsMaximizable and IsResizable has been set to false, still can be maximized into fullscreen (#9580), similarity score: 0.81
• OverlappedPresenter.IsMaximizable Does Not Work As Expected With ExtendsContentIntoTitleBar (#8783), similarity score: 0.81

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