You can view the shipping method used to fulfill an order via the following steps:
In the dashboard, navigate to Orders -> Placed.
Select the order whose shipping details you want to view.
In the Product section, note the following details:
Fulfilled from: This indicates the warehouse the order was shipped from.
Fulfilled by: This indicates if the order was fulfilled by the marketplace operator or a seller.
Fulfilled on: This indicates the date and time the order was fulfilled.