I bet it still scratches when you put your phone in your pocket with literally nothing else in it.
I still can't believe that YouTubers will take knives and screwdrivers to phone screens and it doesn't leave a scratch, yet I take care and only out my phone in my pocket on its own and it's riddled with them.
Those reviewers simply don't understand that scratches are caused by how hard the material scratching it is, not how sharp the object is.
https://en.wikipedia.org/wiki/Mohs_scale_of_mineral_hardness
Knife / screwdriver / keys tests are worthless, Gorilla Glass has been strong enough to resist those for years.
Your pockets probably have minuscule pieces of sand that are way harder than metal.