Document visibility respect privacy follow-up and tasks

Dears, good morning!

I'm using version 9.1.4 of GLPI, however I'm discussing a situation I'd like to share.

For example: a requester opens a ticket in the GLPI, the technician assigns the ticket to him and begins the attendance.

The technician records a private follow-up on the ticket with an attached document, the follow-up is hidden to the requestor, but the attached document is visible to all.

The technician records a private task on the ticket with an attached document, the task is hidden to the requestor, but the attached document is visible to all.

Is there a way these attached documents respect the privacy status of tasks and follow-ups? Because there are documents related to the ticket, in which only the technical team can view.

I consider it important to develop this function of choosing the visibility of documents attached to calls.