To do this, head back to Notifications & Focus, select an app, then tick Allow time-sensitive alerts. However, you should also choose which apps can send you time-sensitive notifications.
Related: iOS Introduces Time-Sensitive Notifications: Here's How to Make Them Work for You
You can choose which notifications from people and apps come through with each Focus mode, opting for time-sensitive notifications, calls, or messages.
If you choose to sync Focus across your devices, any changes you make to Focus on your Mac will also apply to your Focus on your iPhone or other Apple devices. Some cool Focus ideas to set up include Exercise, Mealtime, and Spending Time With Loved Ones. You can make up to 10 custom Focus modes for yourself. Simply select your Focus, then click Edit.
However, you also have the option to create your own. Apple already has a preset of provided Focus for you.