We can delete the app data of installed apps on the Huawei smartphone, which is similar to a fresh installation. Deleted content of the corresponding app includes data, settings, photos/videos, scores and app-specific files.

Note: If no explicit backup was created, the data cannot be restored after it has been deleted.

Android 10 | EMUI 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  Apps
Step 3:  Tap on  Apps
Step 4:  Choose an  app
Step 5:  Tap on  Storage
Step 6:  Tap on  Clear data
Step 7:  Confirm with  OK
  1. Open the Settings
  2. Tap on Apps
  3. Tap on Apps
  4. Choose an app
  5. Tap on Storage
  6. Tap on Clear data
  7. Confirm with OK

Huawei Instructions