The overhaul of the web page spells out exactly what personal information Apple collects and how that data is used, shared, and collected. The policy itself hasn’t changed much. Apple isn’t doing anything differently, but the redesign is more in line with iOS 14’s privacy information labels for app pages.
Apple provides privacy labels for its own apps on the App Store, and if you poke around in settings you’ll often find tappable links about privacy, like “About Ask Siri & Privacy” or “About Safari Search & Privacy”. As far as email is concerned, I suggest using Apple’s email privacy protection feature.