In the browser googlemaps loads normally, already in an emulator or mobile the application opens but everything is blank as in the photo, I already installed googlemaps dependencies, geolocation and network.
When the page is blank, there is an error. Check out the Chrome console ( Opening the console ). It's quite strange that you can run in the Browser, not the Emulator / Mobile. What command are you using?
ionic run android
To test on your cell phone (must be plugged into USB) use:
ionic run android --device