There are many types of modes to share focus status in iPhone. It is an amazing feature for people with tight schedules who cannot read messages continuously and have less time for interaction.
Lets see :
Personal: Mute notification from work related apps after work.
Fitness: You can enable it during the fitness time disallow notifications from other apps.
Work: Enable only work related notification.
Meeting: Work and meetings related notification
Drive time: try to set it for automatic reply while driving. Default one I am driving with focused turned on.