In standard D365 Supply Chain Management, I would separate the requester from the delivery location.
The requester is captured on the Purchase Requisition and is used as part of the requisition/approval process. Once the requisition is approved, the PR lines can be used to generate the Purchase Order.
For the physical destination, the PR/PO has Delivery address information at line level, and the PO also uses the Site/Warehouse to determine where the goods should be delivered.
Therefore, I would check the resulting PO under Header/Lines and Line details to confirm the Site, Warehouse and Delivery address.
If the business requirement is for the warehouse worker to see the individual requester directly on the PO/warehouse document, I would first check whether the requester information is exposed on the standard PO/report being used. If it isn't, that would be more of a form/report/customization requirement rather than a missing PO delivery field.
Microsoft Learn: Purchase Requisition Workflow, Purchase Requisition Overview