You can have the lock option displayed on the Huawei smartphone on the shutdown screen when you activate this function. In addition to the typical "restart" and "switch off" functions, the "lock mode" button is added.

Android 10 | EMUI 10.0
Lockdown options button -  Open the  settings
Lockdown options button -  Tap on  Biometrics & password
Lockdown options button -  Tap on  Secure lock settings
Lockdown options button -  Activate or deactivate  Show lockdown option
  1. Open the settings
  2. Tap on Biometrics & password
  3. Tap on Secure lock settings
  4. Activate or deactivate Show lockdown option

Huawei Instructions
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