I’m not sure what you mean by "full story on: 'Https Mega.nz Folder Cp'." Possible interpretations:

Do Not Click: Avoid opening the link, as it may compromise your device or involve you in illegal activity [2, 4].

• To Download: Right-click a file or folder and select "Download".
• Standard Download: Downloads directly through your browser.
• MEGASync: If you have installed the Mega desktop app, it will handle the download (usually faster and more stable for large files).

I’ll assume you want a clear, concise explanation plus security guidance for unknown MEGA folder links. If that’s wrong, tell me which of the 4 above (or another) you meant.