How to make a lock screen with a delay of a few seconds in KDE?

Question

KDE

I have a 5 minute inactivity lock. And as soon as 5 minutes passes the bang screen and blocked.
I want it to be like in Windows, and that is, the screen turns black showing that it is about to be blocked and it was possible to press some button to prevent the blocking.

Answer 1

So it's still there.

The screenshot shows a period of 50 seconds. You can set your own value. When blocking occurs, it is enough to move the mouse during the specified period.