App creation order? PWA or native first?

So I am wondering if when developing your App, if it is better to create the PWA first or the Native App first, or if it really matters at all. The issue that I have noticed is when creating the PWA, the tablet view, and mobile always seems to be way off compared to the desktop view. Is the a way to stop this from happening or is there something I can do the minimize the issue?
Thanks, Gang