If this file is linked to a specific platform (e.g., a streaming service or video editor), its specific content would depend on that platform's temporary storage. To give you a better answer, could you tell me:
did you find this file (e.g., in a specific website's source code, a temporary folder, or a chat app)? What platform or app was hosting this video?
MP4 files are highly compatible with almost all media players (VLC, QuickTime, Windows Media Player) and operating systems.
It can contain meta-information such as metadata, subtitles, and images.
These files are often used in content management systems for video hosting, playback in browsers, or app-based media players.