To be honest, I don't get what's the use of Google Photos, when there's already a pre-installed gallery on Android phones. I think they shouldn't just let go of the integration of photos in Google Photos and Google Drive. It's better if they will remove the Google Photos app, because there's possibility of privacy exploits from Google.
It is better if Google will focus in privacy stuff, than such. Because they might collect our data on Google Photos and sell them as well Yeah, I am getting paranoid knowing the activities of Google.