The ".mp4" extension means this file uses the format, one of the world's most popular digital containers. A Quick Dive Into MP4 - DEV Community
Since the name itself is generic, you can use these methods to uncover what the video actually shows: VID 20190712 095443459 mp4
: You can take a screenshot of a key frame and use Google Lens or InVID to see if the clip has been posted online or exists in other databases. VID 20190712 095443459 mp4