When using a few features (viewing websites like the forums or developer blog announcement and the loading page for the race viewer), I'm seeing the top of the screen get cut off on an iPhone X. For the web browser, the controls are ending up behind the "notch". For the loading page, the top of the UI is above the screen entirely.
I've uploaded screenshots, but unfortunately iOS screenshots don't include the notch so you have to imagine the navigation bar being obscured on the web browser image.
https://imgur.com/a/0E1hzPY