Even if it was E2EE - trusting Apple with proprietary crypto is like trusting Microsoft to not backdoor Bitlocker. It requires a specifically-qualified moron who doesn't respond to technical arguments and only understands marketing language.
> All they'll do is give us whitepapers on how things should work, which we know has been fabricated at least once in the case of Push Notification backdoors
I’m asking for evidence of your own claim. Apple do not claim that everything is encrypted, they specifically call out various aspects as being unencrypted.
They don’t exhaustively list all risks and perils, but that risk was known to me personally and documented by Apple at least circa 2020 — I worked with some third party developers to provide options to keep potentially high risk data out of APNS messages. Similar risks exist for Google’s platform. I’m not some genius with access to arcane knowledge, but if you’re doing your job it’s part of your risk assessment.
Judging by your very technical closing comment, this has no weight on your opinion, but I appreciate your taking time away from auditing Veracrypt or LUKS to read this.
This isn't a no-true-scotsman attitude. This is a rational reaction to security theater when nobody can prove that Apple is doing what they claim to be doing.