In the push documentation for Live Activities, there's an option to send an accompanying alert for your Live Activity push updates:
"alert": {
"title": "Delivery Update",
"body": "Your pizza order will arrive soon.",
"sound": "example.aiff"
}
When attaching this to the payload, we get a ping + sound with the updated Live Activity UI, which differs from the standard Live Activity push without an alert attached (which is a silent update). I've also been able to verify that this alert arrives in the Apple Watch as a standard notification but not on the iPhone.
I've discovered this separate thread, which seems to confirm the same behavior, but since the documentation isn't super clear on what the expected behavior is, I wanted to verify, is it expected that on the iPhone, we should only get a ping for the Live Activity widget UI and not a standard push notification alert in addition to that?