Explanation
Splits is a feature that should be used to meet this requirement. Splits allows users to assign credit to opportunity team members based on the level of effort contributed by each person toward each deal. Users can create different types of splits, such as revenue or overlay splits, and specify the percentage or amount of credit for each team member. References:
https://help.salesforce.com/s/articleView?id=sf.forecasts3_splits_overview.htm&type=5