Show.Name.SXXEYY.Resolution.Codec.Group

To be direct:

So, if you saw a file named Young.Sheldon.S03E12.Libvpx.WebRip.mkv , the "Libvpx" simply tells you which software compressed the video. It has nothing to do with Sheldon Cooper or the plot.

If you have encountered the term "libvpx" in a file name for this episode (e.g., Young.Sheldon.S03E12.libvpx.mkv ), it refers to the used to encode the video.

Here is a proposed feature for this specific file:

: This episode features the origin of Sheldon's lifelong habit of offering a hot beverage to people in emotional distress, a behavior he learned after successfully comforting Paige. Young Sheldon - S03E12 "Body Glitter and a Mall Safety Kit"