Well myself have owned this phone for a month and two friends who have owned it since December and none of ours are deep scratches like you proclaim.
iPhone 3GS
iPhone 4
Samsung Galaxy S2 skyrocket
s3
S4
Note 3
Note 4
Nexus 5
Nexus 6
Note 8
Google Pixel XL
iPhone 6 Plus
iPhone 7
iPhone X
Besides my iPhone 4 everyone has been or is scratch free of any significance. The iPhone 4 was basically beaten up and at the end of the day only a scratch on the bezel below where the home button is.
All phones uses glass with a few using plastic ( Motorola used it in one of their newer phones calling it shatter proof which it was ) .
So you believe the internet ? God if I ever believed the internet for everything then Facebook is your best source
If you want to hide behind these people claiming it’s easy go ahead but it’s your fault if you did something to it .