The "F" at the end often indicates a release in piracy scene naming conventions — meaning an earlier release had an issue (e.g., bad audio, sync, missing frames, wrong aspect ratio), and this "F" or "PROPER" version fixes it.
It looks like you’re referencing a file named: Aquaman - Lost Kingdom -2023- 1080p.mkv F
Let me know which part you need — verification, explanation of “F”, or something else. The "F" at the end often indicates a
