Install for Home Screen Icon Lock
Have you ever accidentally moved one of the icons on your Galaxy S9's home screen? If you have, this Android Pie feature could come in handy.
With Android Pie, you now have an option to lock your home screen icons and shortcuts which will prevent this from happening again.
You can find the feature in the Home Screen section in Settings. In there, it's labeled as "Lock Home screen layout."
It's a small change, but a useful one.