Any insight on this? I would also like more guidance on publishing to the Windows and Mac stores.
My information is a little dated, and someone here may feel free to correct me, but I don't think there is a way to upload an Adobe AIR app to Windows.
For iOS, see this article Publish AIR applications to iOS devices | Adobe Animate CC tutorials and let us know if it helped.
Is there any confirmation that AIR apps cannot be submitted to Windows App Store?
Sorry to say, you can not upload Adobe AIR apps for distribution via the Windows app store. You can only publish and distribute to the Android and iOS on the mobile side of things. Your app can be distributed for use on Windows, but how you handle that it up to you to arrange. The app can also but packaged for Mac OS use, but I'm not sure if you could distribute it via the Mac OS app store.
More about desktop publishing here:
There is some more information and a "How-to" guide here. You cannot publish to the Windows store, and not sure if you can submit your Mac OS install via the Mac OS app store.