The core problem with most social media, including TikTok, is that they fully control how you can consume the content, be it the endless-recommendations-scrolling of TikTok or the Twitter or Facebook timeline. You can't browse it in a non-addicting fashion, even if you tried, as third party clients are not allowed.

So the solution should be to force them to open up to third party clients. This won't magically make the problem go away completely, but not having so much content locked inside a Skinner box would certainly be helpful.