Samsung S8+ displays "Hidden" after receiving the notice. How to change it?

Changing this setting can be roughly divided into the following seven steps:

Drop-down status bar

Click on the pinion in the upper right corner to enter the settings.

Click Lock Screen and Security.

Click notification

You can see that the option to hide the message content is turned on.

Turn this option off.

It's done. In this way, we set the lock screen message not to be hidden, so we don't have to unlock it every time to see the message.