How to lock screen which should not open until manually unlock through power button on Moto G5 plus

[AC Question]

How to lock screen which should not open until manually unlock through power button on Moto G5 plus

 

[Ca_lvn]

Settings ,security, personal , screen lock , mine is fingerprint with pin backup

 

[stanleywinthrop]

Also, settings/security/screen lock/gear widget/power button instantly locks