All I want to do is simply have a dot appear on my home screen in the way my text messaging works. I am attaching screenshots showing my system that doesn't appear to work that way.

Message notification has important category, but I can't do anything with it. Don't see why I can't simply choose to have dot notifications of messages and not sound notifications.

Chats screen doesn't seem to have a messaging option on my system like it appears to have on yours.