@wchr The quoted sentence from https://www.eff.org/deeplinks/2023/01/eff-tells-supreme-court-user-speech-must-be-protected is puzzling but it's commenting a hypothetical scenario where the changes are major: «substantive claims related to how their systems recommend, promote, rank, arrange, or otherwise display content posted by their users».
https://www.eff.org/files/2023/01/19/21-1333_amicus_brief.pdf
It's a scenario where misconfiguring your site's #Lucene is a legal liability.
On the broader point, we still don't know that #YouTube causes #radicalization.
https://www.techdirt.com/2021/11/03/whole-youtube-radicalizes-people-story-doesnt-seem-to-have-much-evidence-to-back-it-up/