Answers by mail, notifications for replies and settings (followups for anonymous)

Please create a feature that will allow limiting follow-ups from users to other users.

What I mean is that we need a mechanism similar to the function in the general settings Setup -> General -> Notifications for my changes, which, incidentally, does not always work.
Specifically, when correspondence is conducted by email, other participants who are copied on the email but are not direct observers in the system should not receive notifications from the GLPI system about new replies from other users.
This is because they can already see these replies in the correspondence.
However, they should be able to receive replies from the system (when a technical engineer responds within the request)

I am interested in responses (Followup) so that the system accepts responses from users, but does not send them notifications with their own response or from other users who are in this correspondence. But it could send a follow-up in case of a response from a technician in the system itself.
Ideally, this would be for users who are not registered in the system or simply do not have an account, but it could also be for users who are in the system but have never logged in, and correspond and create requests via email.

Perhaps there are already some ready-made solutions for this, such as plugins or settings in the system itself?

Thank you in advance!