It's not all optional and off by default... They only ask about sending debug data to app developers, siri, and I believe find-my. Apple is a little worse since they try to force you into entering your credit cards for Apple pay.

> They only ask about sending debug data to app developers

They ask two questions:

* send telemetry to Apple;

* allow sharing telemetry with app developers.

If you don't agree with the first one, the second one is grayed out.

wrt advertiserid, that's iOS/iPadOS only, on macOS it retuns zero-filled UUID.

Good catch on the macos advertiser id. It's just a matter of time for it to actually work as expected though.

> It's just a matter of time for it to actually work as expected though.

Eh, I mean they just recently made it effectively useless on iOS (requires a prompt before it works; unsurprisingly very few users give permission). Not sure why they'd go the other direction on MacOS... I suspect it's just there for Catalyst compatibility.