.mkv (Matroska Video). This is a flexible, open-standard container format that can hold an unlimited number of video, audio, picture, or subtitle tracks in one file.
The suffix "_0" usually denotes a part number, a version identifier, or a placeholder in a sequence. Technical Specifications a version identifier
"Once_Hes_Out_Of_The_Way" is the descriptive title of the specific segment or episode. a version identifier
"28_06_2022" represents the release or upload date, formatted as Day-Month-Year. a version identifier
Files named in this manner are often part of organized databases where the naming convention allows for easy indexing and retrieval of specific scenes or dates.
"Lily_Larimar" identifies the primary individual featured in the file.