: A unique serial number assigned by the app to distinguish it from other videos saved on that same day. How to find out what is in the video:
: If the video is a clip from a movie, tutorial, or famous event, you can take a screenshot of a clear frame and use Google Lens to search for the original source. VID-20210822-WA0189mp4
: Look at the WhatsApp conversation where you received the file. The context of the chat will usually tell you what the video is about. : A unique serial number assigned by the
: The date the video was saved or sent (August 22, 2021). WA : Stands for "WhatsApp." or famous event