If a website prompts you to "Download IMG_20221122_061410_783.mp4" but you don't recognize the content, . Legitimate personal videos are rarely hosted on public "free download" sites under their original camera filenames.
Searching for a file named typically points to a specific video recorded on a mobile device on November 22, 2022, at approximately 6:14 AM. Because this is a generic system-generated filename, there is no public "official" download or article associated with it.
: Someone may have sent you a direct download link (e.g., via WeTransfer or MediaFire) that has since expired.