We can use the Huawei smartphone's fingerprint sensor as a camera trigger or shutter when this function or feature is enabled. So then take a photo or video by simply holding down the sensor.

Android 10 | EMUI 10.0
Step 1:  Open the  Settings
Step 2:  Tap on  Biometrics & password
Step 3:  Tap on  Fingerprint ID
Step 4:  Enable or disable  Take a photo/video
  1. Open the Settings
  2. Tap on Biometrics & password
  3. Tap on Fingerprint ID
  4. Enable or disable Take a photo/video

Huawei Instructions