No. Merch purchases do not come with specified perks, although we'd say that the merch itself is a pretty great "perk".
A Pay it Forward purchase is a very unique way to support The Chosen in making more seasons. It not only comes with specified perks, it helps share The Chosen with people around the world who wouldn't otherwise be able to watch. Because of that, you need to have purchased a PIF to receive a Digital Collectible.