The filename is a standard naming convention used by WhatsApp for video files. Based on the naming structure, here is the "story" or technical breakdown of what this file represents: The Origin Story
When you share a video on WhatsApp, the app compresses the file and renames it. The original name given by the phone's camera (like "IMG_1234") is lost. VID-20201122-WA0001.mp4
The "WA" in the filename confirms this video was received or sent through WhatsApp . The filename is a standard naming convention used