: If it was a Reel, the ID might be linked to a specific shortcode, though these are harder to manually reconstruct from numerical IDs alone.
: This is typically the unique ID for the specific video or post. 10000000_1198657754291791_9124512634205682713_nmp4
: This prefix is common for video assets stored on Meta's Content Delivery Network (CDN). : If it was a Reel, the ID