Ways to fix iPad Pro screen scratches

Physical screen damage can only be resolved by replacing the screen. However, if scratches are very fine, they may be hidden/disguised using a good quality tempered glass screen protector; the adhesive of the screen protector will fill the fine scratches of the underlying screen. Zagg or OtterBox have good reputation.

You should note that use of a screen protector would have entirely avoided the screen damage already sustained.