Just wondering if I change my wifi name and/or password do I have to go through the setup process again on the cameras?
Yes you do. The only way to change the wifi credentials stored in the camera is to run the setup process again. However, when you do that, do not delete the camera from the app first. Just set it up as a new product, and once the app recognizes that it’s been set up before, it will “merge” it with the one already in the app and retain those settings.