Yes which is why I would have liked to download it via a windows store beta rather than having to download a separate version just to test the beta... Also this actually fixes many of the interface bugs I have been dealing with on my 4k laptop. So this is exactly what I should use for production as it will let me work more effectively.
Its a shame that you didn't upload this as a beta for the windows store... I feel mildly annoyed that the version I paid for is inferior to the free version. Now I either have to run 2 versions of paint.net or accept that sometimes my paid for version will be worse than the free version.