I just bought the iPhone XR and when I'm in some apps part of the screen is cropped out. I've already looked around and can't find anything?

I just bought the iPhone XR and when I'm in some apps part of the screen is cropped out. I've already looked around and can't find anything?

Because the iPhone XR is a pretty new phone, many app developers need to update their apps to accommodate for the different sized screen. Try going to the App Store, then at the bottom click the updates button then press the update all button to let all of your apps update. This may not work for some apps as some app developers may still need to create new updates to fix this.