Not yet @Pavel_Suchkou - I've sent a bunch of logs to Apple, hoping to hear back this week.

Apple have reached out, I'll be in touch with any updates if I manage to get it working.

I got a response and it was to read the documentation... no matter even if I start a new project, ActivityKit is not there.

I'm starting to think this is a manual approval process by Apple as I've tried everything to get this to work at this point.

I am also having the same issue. I've reported it via the feedback forums, but essentially: Xcode cannot generate provisioning profiles that include the com.apple.developer.activitykit entitlement, even when the app is properly configured with ActivityKit capabilities and entitlements. I can't even see ActivityKit within the developer portal. I'm unable to distribute apps with Live Activities through App Store Connect or TestFlight. This affects both Xcode automatic signing.