The new regulation requires a hand-wavey style explanation i.e build a retrieval / ranking / matching algorithm that learns from customer clicks and considers blah blah.
There will be no explanation of the actual algorithm.
There will be no explanation of the actual algorithm.
However, if regulation required companies to disclose all of the data goes into those models, how they acquire it (tracking browser/app behavior, purchase from 3rd parties), and so on, that would be the real game changer for consumer privacy and protection.
I don't know if that's true or not myself though, since I haven't read myself.