Messages
Another classic that has been with us since the original Europa Universalis back at the start of the millennium is our message system, where every message in the game can be configured to show in the news log, be shown as a pop-up with pause or not, or be shown as a text message on the map.
The little button at the top right allows you to configure how you want to display it.
Each message has a category as well, making it easier to configure.