Siri means well when it suggests apps that it thinks you may need.
Just because a feature is considered useful, it doesnt necessarily mean that everyone wants to use it.
This is very well true in regards to Siris app suggestions.
If you want to remove these app suggestions for whatever reason, know that you might.
You have the option of either disabling Siris app suggestions for individual apps for all apps altogether.
Tap on it and toggle of the option that says Search, Suggestions & Shortcuts.
Toggle off all of those options to make all the app suggestions go away.
The list with the red circle to the left are apps that will appear in the Today View.
The Siri App Suggestions could already be disabled.
By following these steps, you wont have to deal with Siri app suggestions.