RE: How to update automatic email notifications
Hi Jen,
First of all, we need to determine the method by which the email is sent, whether it is a workflow, Power Automate, or other tools.
Check workflow:
Go to Settings > Processes, select view to "All Processes". Set the filter of "Category" column to Workflow, the filter of "Primary Entity" column to Opportunity, the filter of "Status" column to Activate.

Then open all workflows, check if there are steps to send emails, and "Start when" contains "Record status changes".

If so, add a condition before the Send Email step, set it to Opportunity, Owner, Does Not Equal, the user who does not want to receive email notification.


Finally activate the workflow.