Here is my situation: I usually take photos with my Android mobile phone, which automatically backs up all photos to Google Photos. However, I'm also in the habit of archiving my photos in folders on my hard drive, which are backed up to Google Drive via Insync. (I do this because I may also have other photos, taken with another camera or sent to me by friends, and I want to keep all of the photos in one place.) Google Photos seems to recognise all photo-type files stored in Google Drive and display them alongside those that were automatically backed up from my mobile phone. I.e. it shows that there are duplicate photo files stored in my Google Drive space.
Is there a way to have Insync recognise when a photo already exists in Google Photos and to share that copy rather than uploading a duplicate? If not, do you know of some kind of Google Photos solution, rather than an Insync one? If not, I probably need to change my photo-archiving habits. What would best practice be to avoid duplicates?