I have a Google Workspace account for my domain and sometimes it is useful to have messages sent from or sent too other addresses in my domain also delivered to my address.
To set it up, login to your Google Admin console, then in the left-hand navigation click on Google Workspace, and then Gmail.
Look for Routing and click on it to enter the routing configurations.
You can then add, modify, delete, enable, or disable routing rules for different organizational units in your domain.