MS Windows UWP SwapChainPanel Surface?

In UWP+XAML SwapChainPanel seems to be used for accelerated graphics.

I failed to find adequate HWND based substitute or produce HWND from it itself.

Is WSI platform Surface extension even possible to be made for UWP?
And if so, are there any plans to add support?

Start by reviewing the UWP+XAML SwapChainPanel context and the Vulkan WSI platform Surface extension discussed in the issue. Determine whether UWP support is technically possible and whether the project has plans to add it; done means documenting a clear feasibility and support-status conclusion.

Written by the indexing model from the issue text.