This feature might turn out to be useful for some who need quick access to the top apps. If your phone is correctly guessing what you want to use then keep the feature on. For the rest of us who think that it is just occupying a row on the top and confusing us, we can simply disable it so that the app drawer is back on its original form.
To disable or turn off app suggestions or the four top row apps in Android Marshmallow:
- Long press on an empty area of your home screen.
- The screen items will be pushed back and Wallpapers, Widgets and Settings will be displayed.
- Click on Settings.
- Under the option Home screen, disable App suggestions by tapping on the slider.