https://learn.microsoft.com/en-us/windows/windows-app-sdk/api/winrt/microsoft.ui.xaml.controls.radiomenuflyoutitem?view=windows-app-sdk-2.0
RadioMenuFlyoutItem Class (Microsoft.UI.Xaml.Controls) - Windows App SDK | Microsoft Learn
Represents a menu item that is mutually exclusive with other radio menu items in its group.
windows appclassmicrosoftuixaml