And while I'm sure I'm preaching to the choir here, quick reminder that unless you're running Lynx or some crap, literally everyone on this blog should have an adblocker installed (preferably uBlock Origin).
I appreciate there are multiple perspectives people have on whether adblocking should be a scorched-earth policy, or whether it's better to just target the worst actors. But disguising ads as native content is abusive enough behavior that you should be blocking those ads no matter where you fall on that spectrum -- and the UI changes here are very clearly, very obviously meant to make ads blend in with normal page results. The 'ad' indicator is meant to look like just another favicon.
I'm seeing people here suggest greaseMonkey scripts, and maybe there's something I'm missing, but I just really don't understand that. Don't restyle the ads, block them! Block advertisers that are abusive.