How to exit Chrome full screen on a Win tablet

I tested it very quickly on my little tab, I can get out from full-screen by right-clicking on a empty place (no text, no images) and then pressing "Exit full-screen".

This option doesn't exists on Chrome 51 or less (I got to let Chrome Update on my tab before write here).

Even normal computers with mouse and keyboard allow this exit mode.

I think I figured it out! I had the same problem on my surface pro 6. You can use a stylus or pen to drag down or swipe down from the top of the browser and a gray X will appear (its a bit finicky, you have to swipe without holding or it will disappear). But if you don't have a stylus, what I did was hold down on the top of the browser for 3 seconds and the X will appear which will exit full screen mode. Not sure why its not more intuitive.