I am reading though the bill right now and do not have quite the same takeaway that the EFF is promoting. Sec 102 specifically exempts platforms from limiting "any minor from deliberately and independently searching for, or specifically requesting, content". This seems to neuter a lot of the pushback that the bill will prevent youth from searching for sexual health, minority status, LGBTQ+ information.
I think a lot of platforms are upset that they won't be able to push this type of content algorithmically (see the prevalence of "mental-health-tok", "5 signs that you have ADHD" videos) but I am *very* skeptical that this type of content is healthy for anyone. I think it drives a ton of engagement which large platforms don't want to lose.
My main beef with KOSA is that a bunch of the meat of the rules and enforcement (Sec 106 - Sec 109) is completely punted on. Lots of "Not later than 18 months after the enactment of this act" the FTC will "issue guidance" or create rules for various things. It seems like Congress doesn't quite know what they want to regulate, but they want someone (who isn't them) to do so.