Here’s a very easy way to look at it. Considering I haven’t heard of anyone using an Xbox console to code or develop before I think it’s easily safe to say and assume that since most if not all products are developed on a PC first that you can expect that with Xbox to eventually follow. Unless otherwise stated I would assume any initial release from development would be for PC and then later on Xbox. That is unless initially specified which you’d probably see in a big huge banner somewhere.