One UI 2.0 adds Google navigation gestures to the mix. These are pretty similar to what you find on the iPhone. You have to swipe up from the bottom of the display to go to the home screen, and if you swipe up and hold, you get the multitasking menu. To go back, you can swipe in from the right or left edge of the display.
The good news is that Samsung has not removed its own navigation gestures, so what system you want to use is up to you. The standard navigation buttons are also available if you like doing things the old-fashioned way. Those are also what are enabled by default instead of the gestures when you first install Android 10
Credit - Abhy
