I am not sure if I said it clearly, but what I mean is that identical files do coexist in the same account. User uploads same image more than once.🐶🐾🫡
Discussion
if you stored them by hash you could deduplicate them
also, if you mean "how do i have multiple filenames refer to one file" it's called a hard link
yes, in the case where you want the user to be able to change the different named files independently then you can't do this but if they are basically immutable then it doesn't matter