How to handle lack of WPS button on new Home Internet Router

Thank you Mrs. Grecki! I found this youtube video tutorial useful from BJ Poznecki titled "how to connect a printer to a T-Mobile 5G Gateway Internet" at 

I was also able to use this technique to add my security camera, although I don't know how I feel about having that on a less secure network. I may need to see about a Google Nest extender or upgrade my camera to one that doesn't need WPS.