Goodnotes it's designed firstly for students, and so it should be avaiable anywhere and in any moment, even without internet connection. So I think that Goodnotes for Windows should be avaiable Offline, this would also allow to have a less laggy drawing experience. The launch of new Goodnotes for Windows can be successful or a disaster (like the update that made MS Whiteboard an internet only app so with no more offline usage)