When enabled, a concise banner notification will be displayed in full screen, and the displayed banner notification will be reduced in full screen (such as watching videos or playing games) to reduce the occlusion of the screen by notifications.
Setting method：
realme UI 7.0 & 6.0: Settings > Notifications & Quick Setting > Banner > Simplify notification when using an app in full screen.
realme UI 5.0 & 4.0: Settings > Notifications & Status Bar > Banner > Simplify notification when using an app in full screen.
realme UI 3.0 & 2.0: Settings > Notifications & Status Bar > Manage notifications > More > Show banner notifications on fullscreen.
realme UI R & Go & S & T & U Edition: Not supported
Related Articles:
How to use Smart notification hiding
How to turn off app notifications from the notification panel