Very interested to find this thread. I'd like to highlight a possibly related issue I've noticed on the XR. With certain apps (Gmail and Hangouts are a couple of common examples), I find the text and the keyboard slightly blurry. If I switch to an Apple app, like Messages, everything is nice and sharp. If you have Gmail or Hangouts installed, please compare the sharpness of the keyboard on those apps with that on Messages and report back here. It's only a slight difference and you may not notice, although I definitely and clearly do. I've also seen it on more than one XR. It may be enough to strain some people's eyes.
I compared this experience with the same apps on my iPhone 8, and no issues there. My guess is that some apps are scaling elements on the screen to fit the aspect ratio of the XR.
I compared this experience with the same apps on my iPhone 8, and no issues there. My guess is that some apps are scaling elements on the screen to fit the aspect ratio of the XR.