As iPads get bigger and bigger, typing on it can become somewhat cumbersome. With the release of iPadOS 13, Apple has included a floating keyboard option.
To enable this feature, once the standard onscreen keyboard appears in any app, use your thumb and index finger to pinch inward on the keyboard. This will shrink the keyboard down to one that is similar to that on an iPhone. You can then use the dark gray bar at the bottom to move it around the screen, or pinch outward on the keyboard interface to return it to normal.