This often bypasses the "locked" overlay that prevents clicking on the image within the app. :
Uses proxy-based queries to find historical thumbnails and metadata for profiles that may have been public in the past. Understanding FB Profile Locking & Security fb locked profile dp viewer best
While there is no magic button, there are that are considered the "best" alternatives to a direct viewer. These require effort but yield results. This often bypasses the "locked" overlay that prevents