usually apps are displayed both audibly and visually on the samsung device. we can also choose to mute notifications of an app. no sound and no icon on the lock screen. the notification is only visible in the notification field (status bar). in addition, we can also choose to display it minimized.

Android 10 (One UI 2.0)
Step 1:  Open the  Settings
Step 2:  Tap on  Apps
Step 3:  Tap on desired  App
Step 4:  Tap on  Notifications
Step 5:  Tap on a  Category
Step 6:  Tap on  Silent
  1. Open the Settings
  2. Tap on Apps
  3. Tap on desired App
  4. Tap on Notifications
  5. Tap on a Category
  6. Tap on Silent

Samsung Instructions
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