Here i have shared some new features in Android Pie You must know about.
1. New Gesture Navigation
2. Adaptive Battery and Brightness
3. App Actions
5. Improved Security Features
6. Digital Wellbeing
7. New Accessibility Menu
8. New Screenshot Shortcut
9. Easier Screen Rotation
10. Volume and Sound Improvements
11. Selectable Dark Mode
12. Easier Text Selection
13. More Notification Information
If you need more information you can ask questions here.