I am having this exact issue with my Google Pixel 3 XL, however I have a slight workaround for now. You can disable the notch via the developer options section of the settings.
- Enable Developer Options by heading to Settings -> System -> About phone and tapping Build number seven times. It may ask you to enter your PIN after doing so.
- Go to the newly enabled section by heading to Settings -> System -> Advanced -> Developer options.
- Disable the notch by changing the "Display cutout" option from Device default to Hide.