This is needed desparetely. The lack of ability to interact with Files to track what documents a client has submitted and which are outstanding is weird that so many years later Salesforce still has not opened up this ability.
Must be needed, because now the users are migrating to lightning exp. so there we can't access the related content. So, we are now using the Files related list. but we can't generate a report for the files that are associated with the parent.