No, the biggest difference is that those privately made maps are bespoke - ordered for specific regions. Fema has to do the entire continental US with an higher focus on all populated areas while being continuously underfunded by malicious assholes in congress. So their modeling is mostly based on elevation purely out of expediency and because that information is still extremely valuable. It doesn't account for rainfall and flash flooding because that kind of modelling is expensive and time consuming to perform for even small areas.
W3 schools has been around for a long time. Their html / css / js pages are really good. They get a pass.
I'm talking about the endless crap of SEO pages that have always been a problem but have gotten far, far worse lately. Also any of those awful coupon websites that quickly duplicate the tab and close the original so it breaks the back button history.
It's the same playbook they use all the damn time. FFS when I fill out those race forms I pick random stuff because race is made up and does not belong on a government form. Even if it was semi-factual, the categories that are provided are all bullshit. "Pacific Islander" and "White" do not belong in the same selection - one is for a group of people who are from a geographically distinct location, and the other is for people who distinguish themselves as "im not one of those other groups because i was gifted with light colored skin". Not related. Not the same. So anyone freaking out about a selection on that form is snorting high grade dumbcain.
Ah yes, the astrological symbol of cancaurus.