We can temporarily pause received notifications from apps on the Huawei smartphone, hiding the individual notification for a specified time. We have the following options to set a delay:

Android 10 (EMUI 10.0)
Step 1:  Swipe to open the  notification panel
Step 2:  Swipe the  notification  to the left 
Step 3:  Open the  Settings
Step 4:  Tap on  Delay
Step 5:  Choose  Delay by 15  /  30 minutes  or  Delay by 1 hour
Step 6:  Confirm with  OK
  1. Swipe to open the notification panel
  2. Swipe the notification to the left 
  3. Open the Settings
  4. Tap on Delay
  5. Choose Delay by 15 / 30 minutes or Delay by 1 hour
  6. Confirm with OK

Huawei Instructions
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