DND Permission granted, but it's actually not (Android 13)

[freshgiammi]

This is kind of an issue in the sense that it should be documented, but a workaround is available for now.
The application (mobile) says 'DND access granted', but it's actually not true on Android 13 (tested on a Pixel 6, 05-09-2022 security patch). This results in DND getting set from watch to phone, but not the other way around.

What you need to do, in order to actually grant the permission are the following steps:

• Go to app info and then hit the three dot menu in the top right, then select the option to allow the app to access restricted settings.
• Go to Apps -> Special access -> Notifications, and here turn on notification access to DNDSync

Once this is done, full duplex DND setting should be working again.