Most of these screens are not faulty, people damaged them when they came into contact with something abrasive.
There are a few that were damaged during manufacturing, and those have been replaced (and will continue to be so) as would devices subject to any actual manufacturing defect.
The photos of damage that have been posted all clearly show where something abrasive scratched the screen, often when a phone was placed into or removed from a pocket, as they show a long continuous curved scratch or scratches.
It does not matter whether you experienced an issue before; the fact that you could hit a sign post at 10 MPH in a 1955 Chevy does not mean when you cause $10,000 in damage doing the same in a 2020 Porsche that the latter is defective.
You can choose to use a screen protector or not, but if you choose not to, you may inadvertently cause cosmetic damage.
If that is an issue for you, return your iPhone if you can; if not, sell your iPhone as used and purchase a different device - but beware that most newer phones suffer from the same issue. I've posted links before showing similar complaints lodged against similar flagship Android phones, including the at this point mere weeks-old Google Pixel 4.
If you felt your old iPhone was more rugged, sell your new one, buy a used or refurbished iPhone of the model you prefer and pocket the likely substantial price differential.