This sounds more like the implementation of the dnd timer When you create a timer for a mode, the most straight forward implementation is to exit that mode whe

This sounds more like the implementation of the dnd timer When you create a timer for a mode, the most straight forward implementation is to exit that mode when time is up, not to cache what the previous mode was and check if other systems have ownership of that mode. I wouldn’t be surprised if you set a dnd timer for one hour at 8am, dnd will be turned off at 8:30am. Keeping track of who owns this setting is more difficult than just having each service switch the setting when they are told to.