The Samsung Galaxy S9 and Galaxy S9+ comes with Android 8.0 (Oreo) out of the box (Upgradable to Android v10), So the Predictive Text feature is a built-in feature in this Android smartphone. The Predictive Text feature is enabled by default, And this Guide will show you how to turn it off on Galaxy S9 and S9+.
As the Samsung Galaxy S9+ AT&T has a lot of new features and functions, So it is so helpful to have a complete User Manual (user guide) that can guide you to discover all those interesting features and functions.