Open WhatsApp, use the function, and type "VID-20211221-WA0000". This may link you directly to the conversation where the video was originally shared.
If you are trying to retrieve this specific video, it is likely stored in one of the following locations: : Download VID 20211221 WA0000 mp4
Check the "Sent" or "Private" subfolders if it's not in the main directory. : use the function