Settings path related to screen closing: (Settings > Desktop, Screen Lock and Wallpaper > Off-screen Display)
Set the notification icon path for off-screen applications: (Settings > Desktop, Lock Screen and Wallpaper > Off-screen Display > More Display Settings > Off-screen Notification)
Setting path of off-screen atomic notification: (Settings > Notification and Status Bar > Atomic Notification Settings >; Screen off)
If you still have more doubts, you can enter vivo official website-My-Online Customer Service-Enter labor and consult online customer service feedback.