To preface: I am a very new user.
The Pantone trademark is mentioned in the "About Affinity Photo" window but I cannot find a Pantone Color library in any of the drop-down menus. I also cannot find a duotone model for specifying pantone colors. This would most likely not be a problem if the final document would be Affinity Photo or Designer. It is when it's part of an InDesign document.
One of the users mentioned Pantone cvs files. I can't find them.
Also, the embedded plug-ins don't display in the drop-down menus.