What is the difference from approve release and release in Microsoft 365 Quarantine?

Barry14850 I found the following docs article: Manage quarantined messages and files as an admin | Microsoft Learn

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Users can request the release of email messages if the quarantine policy used Allow recipients to request a message to be released from quarantine (PermissionToRequestRelease permission) instead of Allow recipients to release a message from quarantine (PermissionToRelease permission) when the message was quarantined. For more information, see Create quarantine policies in the Microsoft Defender portal.

After a recipient requests the release of the email message, the Release status value changes to Release requested, and an admin can approve or deny the request.

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