Yes, but the article isn't objecting to Apple listing its own Podcasts app at the top of a search for "podcast". It's objecting to it then listing Compass, Find Friends, Tips, and 12 more Apple apps that aren't related to the search query before any non-Apple app is listed. (Which issue they have since fixed.)
The article is about "Apple made a mistake in its search algorithm", not about competition per-se.
The article uses the term "stacked". It refers to a complaint to the EU about the abuse of their position as owner of the App Store. It refers to a Supreme Court anti-trust case. It repeatedly frames the discussion in terms of what Apple gained vs competitors.
The article is about "Apple made a mistake in its search algorithm", not about competition per-se.