Problem: I have two custom post types - Articles and Authors - connected in a many-to-many (m2m) post relationship. I have created a View of Articles posts, and in the list of Articles I would like to include information about the related Author.
Solution: Any time you want to display information from the "many" side of a post relationship, you'll need a View. Since the relationship between Articles and Authors is a many-to-many relationship, you'll need a nested View structure to display a list of Articles and the related Authors for each Article.
Nested View creation is not directly supported in the Block Editor, so you can use the legacy View editor if necessary. For the inner View, use a post relationship Query Filter configured with the Articles - Authors M2M relationship selected, showing items as related to the current post. You can place the inner View in the loop of the outer View using a wpv-view shortcode.
