How does Apple's mobile phone turn off the focus mode?

After setting the focus mode, contact with some people may be restricted, and notification messages received by the APP cannot be viewed in time. How does Apple turn off the focus mode when we are no longer in this mode?

How does Apple's mobile phone turn off the focus mode? 1. Click Focus in the phone settings menu.

2. Click the focus mode scene that needs to be closed.

3. Turn off the switch on the right side of the focus mode.

This paper takes iPhone 13 as an example and applies it to iOS 15 system.