Gestures on the Note 9: quick clip shows us the Samsung Experience with Android 9 Pie
Now, we get our very first (and very short) live-action clip that shows us how the swipe-to-switch-apps gesture works. No surprises there — it acts a lot like the stock Android Pie UI. You swipe the home button to the left and the phone starts cycling through your most recent apps. Alternatively, if you swipe upwards on the home button, you get the full app carousel and can swipe through all your recent apps.
When the virtual navbar shows up towards the end of the clip, we see that it still has three buttons — back, home, and recents. That's unlike Google's UI, which will remove the recents button if you choose to use gestures.
Anyone who feels a bit adventurous and has a Galaxy Note 9 with a Snapdragon 845, instead the Exynos version, the beta for this