If you’re looking for a (e.g., for a documentation or app update) describing “Exclusive MEGA folder access via crypted link,” I can draft that too.
https://mega.nz/folder/y3gujd5c#yg7itgp1u6yamcrkoa0hha That would be a typical with an encryption key included after the # .
It looks like you’re trying to share a folder link with a specific structure. Based on the pattern you gave: