So you want Opportunity Team Member's names on the Opportunity to run reports filtered by sales' team members.
Create a rollup to aggregate the Opportunity Team Member Names on Opportunity.
The first step is to create a new custom field (using Text as the data type) on the Opportunity object. You can name the field "Team Member Names."
Create the rollup:
Now you can create report and dashboard filters based on "Contains [Sales team member's name]."
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