If you want to know who sent you this specific video from 2021, you can often find it within the app: WhatsApp media file naming convention - Forensic Focus
Understanding Your Files: What is "VID 20210627 WA0005.mp4"? Download VID 20210627 WA0005 mp4
: This is a serial number. It indicates this was the fifth video saved to your WhatsApp media folder on that specific day. Is it Safe to Download or Open? If you want to know who sent you
: This is the date the video was received or sent, formatted as YYYYMMDD. In this case, the video is from June 27, 2021 . formatted as YYYYMMDD. In this case