photo edited symbol on photos on iphone

On the Mac in Photos, after you edit a photo, it will have an edited icon/symbol on the upper right of the photo, similar to the Edit icon/symbol to edit the photo. You can control this option in the Photos app Preferences. Why is this not an option on the iPhone and iPad? Or, is it and I can not find how to turn it on? If I am sharing photos with another person, there is an icon that resembles two people, indicating that that photo is being shared. Why then, is there no option for showing edited photos in Photos on the iPhone and iPad?

Yes, Yes, I get that there is a Recently Edited option to show all the recently edited photos. That is a good option, however, what I am looking for is a way to look at my photos and determine what images ARE NOT EDITED. If I am doing editing on a folder or album of photos, I want a way to easily identify the edited images from the non edited images so I do not have to click the edit button to see if it has been edited. That is a waste of my time. Seems like a very simple thing to do, since the Mac has this feature.

Thank you!

[Edited by Moderator]