How can I track an Amazon Logistics (AMZL_US) shipment?

Just use the “Amazon - by tracking link” option. If you go to Amazon’s “Your Orders” page in Safari, you can use the Share button and then choose “Add to Deliveries” for a list of shipments you can add. Or you can copy the link of any “Track package” button on the “Your Orders” page and paste it into the text field on the “Add Delivery” screen.