Have you messed with notification settings? There are many different settings for example see attached.
Yes. Been messing with them all day.
You actually have a lock screen with a pin, (on lock screen show content - That is not there if there is not pin.
There are two options, but both dont help me. In edge settings, I can turn off the notifications for whatsapp and that would eliminate the mini pop up with the name and part of the message. in turn it would bring a pop down with the last 5 chats/people that are unread. This doesnt help either, Im trying to eliminate all content in any message pop up other than who or if multiple people/chats then just hoe many unread.