Installation Status all fine but PWA not showing popup

I install PWA after doing a thorough search on the internet. I made sure that my site was a https and also made sure the icon was 192x192px while the icon for the splash screen was 512x512px. I made sure to input both the app name, and the short name. I’ve tried clearing out all cache and everything else upon installation but after all that I still can’t get the popup notification in desktop or mobile. I really don’t know where it went wrong, someone please help.