It does not really require a lot of nuance. Any platforms serving short-form content using algorithmic recommendations, giving any random account infinite reach, a la Instagram/Tiktok/Youtube/Shorts/Reels/Redbook/etc are part of the problem.

WhatsApp groups are a source of slightly different issues - fake news, radicalization, social bubbles - but not a source of addiction to the same level, especially among the young.