I’ve checked all the settings and the Nieuws posts are created by the ‘WP News and Scrolling Widgets’ plugin, whereas on this page: https://manualmaster.com/verhalen-uit-de-praktijk/page/2/ the posts are added with the WPBakery element ‘Blog’.
I noticed I can get the right canonical URL by setting this page as the Posts Page in the reading settings of the website. However I don’t want to do it, because it ruins the layout of the posts that our client requested.
Should I use custom filters as described here: https://yoast.com/help/canonical-urls-in-wordpress-seo/ to manually set the appropriate canonicals for paginated content?