iOS’s Focus is a little more involved

Whereas Google just lets you flip the switch to shut everything up, Apple would like you to take a second and think about your priorities before setting up a Focus.
As you edit, think through each option. As you’re choosing to silence notifications, select which People and which Apps should remain dormant while you stay unbothered. By default, iOS will block calls and messages from your contacts, and you’ll have to choose which folks to allow. As for apps, iOS will pre-allow a list of apps that are allowed to push through notifications during Focus.