(e.g., a gaming clip, a family moment, a tutorial, or a news event).
If you aren't sure where it came from, here are the most likely sources based on that naming convention: Video 2021-11-29 at 140818mp4
: macOS and iOS often use a similar "Date at Time" format for captures. a gaming clip
: When you save a video from WhatsApp, it often renames the file to Video YYYY-MM-DD at HHMMSS.mp4 . a family moment