Display with Notch
On my new Pixel 3 XL i have noticed that the area around the notch is not respected. As a result the whole "screen" is moved downwards. The height reserved for the notch is missing at the bottom edge, so some parts of the screen is hidden under the edge. Maybe you can test it with developers options for the notch?
My quick and dirty solution is to move the widgets on the bottom upwards.