This build is known to "call home" to it's developers/publisher if there is an active network connection, and some people have gotten into trouble for launching it when the game was still in development. Chances are it won't happen now since the game has been fully released, but please do still take precaution measures and do not launch it unless you are in a somewhat secure environment, such as being in a VM with no network card.

You can still browse the .appx with programs like 7-zip and just explore the game files freely, to see what has changed during development without the need for a VM!