How to set conditional judgment for multiple departments in the same form workflow

Frappe Framework
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For example:
Project Engineer (multiple) Corresponding to the project manager approval
Corresponding to the project manager approval Corresponding to the construction manager Approval Problems
encountered at present:

  1. Initiated by multiple project engineers, a push email notification will be sent to all project engineers. (I only want to send a notification email to the initiator)

If multiple roles are initiated, how to write judgment conditions will be automatically given to the corresponding approval person