Android tablets were dead. Google had abandoned them after the Pixel C (2015). Samsung kept building Galaxy Tabs, but stock Android on a tablet was a stretched phone interface with no optimization for the larger screen.
Author: sepedatua
The Evolution of Android Gesture Navigation
For eight years, Android navigation was three buttons: Back, Home, Recents. The layout changed (physical → capacitive → on-screen), but the concept was constant. Then the iPhone X arrived in 2017 with a gesture bar and no home button, and everything changed.