Our latest release has been confirmed to resolve Android 14 QPR2 Bluetooth module issues causing connectivity issues with 5th/6th generation Galaxy Watch devices. 2nd set of upstream Bluetooth bugs we've fixed this month. Please provide feedback here:
https://discuss.grapheneos.org/d/11383-request-for-testing-and-feedback-with-bluetooth-on-android-14-qpr2-grapheneos
App sandboxing is available on standard Android but that means nothing when you log into a Samsung account and give them permissions to all of your personal data.
Well, when they have fake user data and can't access any data from others apps...it means more than nothing.
Do you not have notifications on your smartwatch? No calendar, location, calls, contacts, etc?