You haven't needed a screen protector in a long time.
https://gizmodo.com/iphone-x-damage-report-two-months-later-...
So iPhone 11 Pro max become the first phone I had to buy a screen protector for, really disappointing in such an expensive phone.
I got mine on launch and have zero scratches. I've even zoned out at work and started writing on the screen with a pen a few times, but it's still perfectly smooth. I grabbed a piece of metal and started scratching at my screen halfway through this post just to double check, and it's still fine.