One gripe I had with the beta is when using pop up apps such as messenger. The space below the keyboard was ott (thankfully they have shrunk it in the final release), but they hadn't blocked the touch on it, meaning whatever is set behind it on my home screen gets clicked on each time I accidentally press on the space below. This doesn't happen on full screen apps.
My question is this... is this something they have overlooked (although I did put it in my feedback more than once) or is it up to each app developer to disable touch on the space below the keyboard.
I have nav gestures enabled if that makes a difference.