Notifications are an essential part of the iPhone and iPad experience, but you may not always be happy with them. There are numerous ways to silence notifications, optimize the Notification Center, and only be alerted when you want to be.
The Notification Center on iPhone and iPad shows a history of your notifications. It can be accessed by swiping up on the lock screen or swiping down from the top left on every other screen. You can choose whether you want notifications from apps to appear in the Notification Center, and they can be excluded from appearing on the lock screen. Essentially, the Notification Center is Apple's version of Android's notification shade system.
You can silence notifications on an iPhone with the Ring/Silent switch, Action Button, the "Do Not Disturb" Focus mode, or by turning off notifications for specific apps. The iPad does not have a Ring/Silent switch or Action Button, but it does include the other options.
The Ring/Silent switch or the Action Button (Pro models) is the easiest method on the iPhone. Simply locate the switch on the left side of the iPhone and move it so you can see the orange background. With the Action Button, you just need to press it to toggle between ring and silent modes (assuming you haven't changed the action).
For a method that works on both the iPhone and iPad, first, swipe down from the top-right side of the display to open the Control Center. Select the "Focus" tile and choose "Do Not Disturb."
If you would like to schedule Do Not Disturb mode to come on at certain times automatically, you can do so from Settings > Focus > Do Not Disturb.
Let's say you just want to silence notifications for a specific app. First, open the Settings and go to "Notifications." Scroll down and select an app from the "Notification Style" section. Here, you can toggle off the "Allow Notifications" option to stop
Read more on howtogeek.com