If an app on the Huawei smartphone stops responding or cannot be closed via the app switch, we can force an exit or stop.

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  Force stop
Step 6:  Confirm with  Force stop
  1. Open the Settings
  2. Tap on Apps
  3. Tap on Apps
  4. Choose an app
  5. Tap on Force stop
  6. Confirm with Force stop

Huawei Instructions