Samsung devices can be unlocked using biometric data such as fingerprints or face. The biometric data can either be removed individually or simply by selecting "None" as the lock screen, which removes all data (fingerprints, face data) from the device.

Note: All biometric data will be deleted, but also the screen lock will be deactivated. The screen lock must then be set up again.

Android 10 | One UI 2.0
Step 1:  Open the  Settings
Step 2:  Tap on  Lock screen
Step 3:  Tap on  Screen lock type
Step 4:  Enter  PIN / Password / Pattern
Step 5:  Tap on  None
Step 6:  Confirm with  Remove data
  1. Open the Settings
  2. Tap on Lock screen
  3. Tap on Screen lock type
  4. Enter PIN/Password/Pattern
  5. Tap on None
  6. Confirm with Remove data