Oddly enough, some of the earliest forms of photography can last MUCH longer than present-day films if they are not mechanically damaged. I have color photos from the 50’s that are falling apart.
I have 110 year old family pictures. Low technology rules!
Sorry. I missed your point. The color dies in photos has a limited shelf life. Black and white photos are the best.
Our wedding photo hanging on the wall an in the sun part of the day has faded almost to the point of being unrecognizable.