Please respect the DND from the paired device. It's often enabled and disabled because of appointments in the calendar. Please let the user decided.
Do I want notifications on my watch when my phone…
Please add the option "Respect phone DND status". That would solve the issue for me. I do not need any watch specific DND mode but others do.
I believe that, as notifications come from the phone, it should follow what is set on that device. A good example is how Fitbit respects the phone DnD mode set on the watch, which is what it is being suggested…
Makes sense re the exceptions, but I'm not a programmer and (oddly enough!) haven't perused the API that Garmin has to use.
However, there is a specific "Do not disturb" permission whereby you can set whether an app (even third party) can override DND. I'd guess that this permission at the very least allows the app to see the current DND state.