This page is meant to test your PWA score without any other apps or page speed interfering with PWA. We can run this page through the Google Lighthouse Audit Tool to see what the PWA result will be. If you receive A Blue and a Green icon in your Lighthouse PWA report under the "PWA" tab, then this will be indicating that you have a perfect PWA score with Google Lighthouse. The icon will look like this:
If this page receives a green icon, and your Home Page does not, then there may be a conflict with another app on your theme. Currently, FirePush and HyperSpeed are two apps that may potentially cause a conflict with PWA.