I was curious about just how soft this glass was, so I bought an iPhone 11 Pro about a week ago and decided to spend a day treating it like I treat my iPhone XS:
I put it into and pulled it out of my jeans back pocket more than 100 times (with the screen always against a clean cotton handkerchief, which is my usual habit after what happened to my iPhone X; see below).
I sat on it a couple of times with it in that back pocket.
i put it into a dusty coat pocket and walked around for a while, pulling it out and replacing it a couple of times.
I blew most of that dust off and then cleaned it with a dry microfiber cloth. (Don’t try this at home. Much safer to use a lubricating cleaning spray.)
I used it for a few hours and wiped fingerprints off periodically with a microfiber cloth.
End result: screen is still perfect, with not even the slightest sign of a blemish at any angle under bright inspection lighting.
On the other hand, my iPhone X did get a very slight scratch (or maybe blemish in a coating?) in the screen—visible but not deep enough to feel—that I couldn’t explain for sure. However, I think it was from when I was on vacation with the phone in a big cargo shorts pocket, pulling it in and our repeatedly, possibly part a brass button.
So, I don’t see evidence of the 11 Pro glass being any softer than the X, anyway.
Still, this thread is enough to give me pause. I probably will return the 11 Pro within the 14 day return period and wait a couple of weeks until the holiday shopping season begins, and Apple offers the much longer holiday return period, so I can give it a long and proper shakedown.