Android moves away from navigation buttons. Even with the transparent navigation bar on the Galaxy Note 10+, it still takes up space on the screen that could otherwise be used to display content. The nice thing about the Galaxy Note 10+ is that you can remove it without installing one app.
Until Samsung releases Android 10 for the Galaxy Note 10, the new sign navigation from Google is not available. But One UI 1.0 introduced its own motion navigation, which is almost as good. You get three trigger areas to wipe out, plus you get back all the screen real estate that the navigation buttons occupy.
Enable gesture control
Open Settings and select "Display". Choose "Navigation bar" and select "Full screen gestures". Once selected, you no longer have a navigation bar. The buttons are now activated using gestures and they are fairly easy to use. To activate a particular button, swipe up from the bottom to the position it would normally find in the navigation bar.
For example, to go home, swipe up from the center of the screen where the home button was. Because Samsung lets you change the order, the buttons on the back and recent apps, where they were located in the navigation bar, will determine their gesture position on the left or right of the bottom edge.
If you are unsure where to sweep up, you can add small indicator tabs along the bottom that indicate where you can swipe up to the button. To see this, enable "Gesture Hints" in the same menu.
You can also prevent using the S Pen with gestures when you switch on the second switch. The idea behind this feature is that if you draw on the screen and want to draw something near the bottom edge, this is not possible if the gesture is on.