Let's take a look at the tech that lies under the Pixel 3 XL's newly-notched exterior:

The Google Pixel 3 XL is all dressed up in the latest flagship phone uniform: glass on the back and a notch on the front.  But we’re headed past the shiny new facade, for a closer look at the insides. And there’s only one way to get there—with a teardown!

https://www.ifixit.com/Teardown/Google+Pixel+3+XL+Teardown/113656