@Kierkegaanks @Tutanota I've seen multiple claims to this effect with no evidence.
The proposals as stated have been requiring providers of e2ee messaging to do the backdoors, which would basically mean the corporate shit platforms get backdoored and the real stuff first fights then ignores the law if they don't win, and possibly gets removed from app stores, relegated to sideloading.
Nobody wants to be the party doing the backdooring. Apple is not going to step up to do it at the OS level, and ruin their reputation, when they can say "the regulation puts the burden on chat providers, not us" (except iMessage which they'd probably backdoor).