What! thanks for your response and the little lecture about wordpress ^^ I did not know that! It works perfectly.
Based on how TSF works, would it be better in terms of SEO to remove the child category from the URL? Since the focus is more about the titles of my articles. Yazilar basically means Articles in English so the hierarchy would make sense without the child category.
One thing to note though, on the article page itself I’m showing both parent and child categories in the breadcrumb for easier navigation but not sure if canonical should match with that or I’m better with just the parent category in the URL.