Windows 10 added a better pattern for ITransformProvider: ITransformProvider2.

That pattern is missing from WPF, limiting the accessibility features of WPF compared to UWP/WinUI.

Here's the equivalent UWP/WinUI3 version:
https://learn.microsoft.com/en-us/uwp/api/windows.ui.xaml.automation.provider.itransformprovider2?view=winrt-26100
and win32 doc: https://learn.microsoft.com/en-us/windows/win32/api/uiautomationcore/nn-uiautomationcore-itransformprovider2