I would like to know what files I might be deleting when prompted to do so by the app.. they are allegedly encrypted so if I wanted to inspect them, wheee would I find the key ?

I would like to better understand why I am asked by my i11 if I would like to delete files that are apparently on their way to the cloud. This makes no sense to me… Perhaps they are already on my iCloud Drive. I am not sure how to be certain. Either way, I have more storage than I know what to do with, so I would rather inspect the dozen or so “encrypted” documents & data so I can better understand what’s going on.