We've got our gift message option on, and the form shows up at checkout and feeds into the admin as you'd expect, visible on the order view. However it's not printed on the packing slip or invoice PDFs and doesn't seem to be rendered anywhere else. Am I missing something, or do we need to go down the route of modifying the PDF output from the Magento Sales module to include the gift message on the packing slip?
Magento CE 2.2.3.
