Photo App Badge - I want to see where it comes from
I've seen questions like this but the answers are about how to get rid of the badge (the little red circle with a number in it stuck to the Photos icon). I am fine with these things, I just want to find the comment or photo it relates to. I am part of a whole bunch of shared albums with people, and clearly someone added something, a photo or a comment, and I can't find out where. Can someone tell me?
MacBook Air