How does Shopee cross-border e-commerce deliver goods to customers?

There are two ways of delivery on the Shopee e-commerce platform: one is that the merchant directly contacts the courier, and the default transit warehouse is the Shenzhen warehouse; the other is that the merchant directly contacts the Shopee freight forwarder and delivers the goods directly to the freight forwarder. Please give criticism and correction if there are any inappropriate points, thank you!