Delete original pictures/videos from phone and not have Google Photos automatically delete the online copy I have Google Photos app enabled to automatically backup all my photos and videos to my Google Photos. My question is, once they are on the drive how can I delete the original from the phone without having it deleted on the Photos?
After the photos have been backed up, in the Google Photos app you can delete the photos by selecting the photos you want to delete and then pressing the three dots in the top right corner and selecting "Delete device copy".

This will delete the copy on the phone, but leave the copy stored online safe.