Because this is a private file naming convention, there is no public "informative content" tied to this specific filename. To help you understand what might be in it or to find related information, I'd need a bit more context:
If you describe the people, locations, or actions in the video, I can look up the facts, history, or science behind them. Common events from mid-November 2021 include: The COP26 Climate Summit aftermath. video_2021-11-15_23-16-03.mp4
If it was from a specific news event, viral thread, or educational channel on that date, describing the visuals can help identify the subject. Because this is a private file naming convention,