Dave Lee screen already got scratch so I do not think it is more scratch resistant. The increase in durability mean there is a decrease in scratch resistant. Please paste a screen protector or a glass on the iPhone 12.
Just because it is scratched doesn’t mean it is worse off than the previous screen.
Unless it is made of diamond, everything scratches.
“ Zack Nelson today shared his much-anticipated iPhone 12 Pro durability test on his YouTube channel JerryRigEverything, and based on the Mohs hardness scale, he found that the device's display is "still scratching at a level six, with deeper grooves at a level seven," in line with dozens of other smartphones he has tested over the years.
Nelson did find that the scratches with the level six Mohs pick appear to be slightly fainter compared to previous iPhones, but there is no dramatic improvement.”
So there is slight improvement, but nothing to shout about. But no, it is not worse than previous screens