This is from your own link:

“For certain sensitive information, Apple uses end-to-end encryption.”

“These features and their data are transmitted and stored in iCloud using end-to-end encryption:”

* Home data

* Health data (requires iOS 12 or later)

* iCloud Keychain (includes all of your saved accounts and passwords)

* Payment information

* QuickType Keyboard learned vocabulary (requires iOS 11 or later)

* Screen Time

* Siri information

* Wi-Fi passwords

Yes, I wasn't debating a point, just providing a list of exactly how Apple encrypts user data.

And please mind that e2e means next to nothing when the data is stored and retrieved with a closed source (and usually auto-updating) client app.