I’m not entirely certain what you’re aiming for with this suggestion, but I can assure you it won’t allow your hardware to magically run the Unity editor. The Desktop App Converter appears to work by acting as a compatibility layer between an older application and newer APIs in much the same way that Wine does.
Unfortunately, if I’m not completely mistaken as I’ve never had a gander at the source, Unity isn’t relying on the APIs that this utility is meant to provide compatibility layers for and thus it likely will have little to no effect at all.
The only thing the converter does is that it will package up the application into an AppX package. It will still only run on desktop as long as the application uses desktop APIs. It doesn’t automatically make it compatible with other Windows 10 platforms.
If you want to target Windows Store, just use our native support for it.