The Quick Settings panel on your Galaxy phone lets you access and use different functions quickly and easily. For example, you can turn on Airplane Mode or mute your phone's sound or turn On/Off the location. If you want then you can change the button order and rearrange the buttons any way you choose.
If you want notifications not to be shown when your screen is locked then you can do it by following the below steps:
Open Settings >> Lock screen >> Tap on Notifications(This setting is only available if a Screen lock type is set up) >> Notifications must be turned on to access setup >> Tap Hide content to turn on.
Notifications to show: Enable either Alert and silent notifications, or Alert notifications only.
View style: Choose from Icons only, or Detailed, which shows information about the notification.
