XamlTypeInfo.g.c Trim and Obsolete Warning

[ghost1372]

Describe the bug

After enabling AOT compilation (<PublishAot>true</PublishAot>) in my WinUI 3 project, I encountered several warnings related to XamlTypeInfo.

'this' argument does not satisfy 'DynamicallyAccessedMemberTypes.PublicConstructors', 'DynamicallyAccessedMemberTypes.NonPublicConstructors' in call to 'System.Type.TypeInitializer.get'. The parameter 'instance' of method 'PSXMaster.PSXMaster_XamlTypeInfo.XamlTypeInfoProvider.get_127_Type_TypeInitializer(Object)' does not have matching annotations. The source value must declare at least the same requirements as those declared on the target location it is assigned to.

'Type.IsSerializable' is obsolete: 'Formatter-based serialization is obsolete and should not be used.'

'TypeAttributes.Serializable' is obsolete: 'Formatter-based serialization is obsolete and should not be used.'

when i double click on warning i navigated to this:

Steps to reproduce the bug

Create a WinUI 3 (Windows App SDK) project.
Enable AOT compilation by adding the following to the .csproj file:
<PublishAot>true</PublishAot>
Build the project.

Expected behavior

The XAML compiler should generate code that is compatible with AOT without triggering trimming-related warnings.
Obsolete serialization APIs should not be used in auto-generated code.

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.6.5: 1.6.250205002

Windows version

Windows 11 (24H2): Build 26100

Additional context

No response