What does Apple's SMS sharing focus state mean?

Apple's SMS sharing focus state is to allow work software notifications.

According to relevant information, Apple's SMS sharing focus status is that Apple's mobile phone iOS 15 has launched a focus mode, which can filter notifications according to the tasks handled by users and only allow colleagues and work-related apps to send notifications.

Users can use Apple's mobile phone to set work focus mode and receive work messages during working hours. Setting private focus mode allows users to receive notifications from relatives and friends.