Sounds like game over for google.

That said, there is trend even outside of google to move away from high levels of configurability in these sort of security sensitive areas. I'd be curious what a system like wireguard lets you do in terms of bit twiddling.

OpenSSL was sort of famous for letting your turn just about every knob you wanted. Not sure that was a ton better.

And I have heard some concern that folks like apple put so much into attack surface on things like imessage (memoji's?) for messages from unknown and untrusted users (ie, new users you aren't texting with can send entire set of stuff imessage supports which is a TON vs just being text only to start). So even in other areas dialing down things might be helpful.