My dog chewed on my Pixel 4 display and totally broke it. I mailed it off to get repaired. Cost me $299. Not sure how much it usually costs to replace a phone's display, but as the phone was pretty new at the time, I paid it.
That's about the same price I had to pay for broken display on my S10. So it seems it's about standard (and ridiculous) amount of money for a screen replacement.