You are looking for a for a video with this specific filename.
Could you please clarify where you saw this filename or what kind of content you expect the video to contain? Once I have a bit more context, I can help you track down the information or "useful" details associated with it. shiny-2B1_02mp4
You are referring to a (like on Discord, a forum, or a file-sharing site) where this file was shared as "useful." You are looking for a for a video