Since the filename "Video Dec 21, 10 09 54 AM.mp4" follows the default naming convention for or macOS screen recordings, here is how you can identify its "proper features": 1. Technical Metadata (The File's Features)
If you are asking about a specific software feature that generated this video: Video Dec 21, 10 09 54 AM.mp4
If you saved a Live Photo as a video, it often adopts a timestamped name similar to this. 3. Contextual Content Since the filename "Video Dec 21, 10 09 54 AM