Tesla-sized and shaped glass is not available from general glass shops. I had a large crack appear in mine. My insurance and multiple glass shops in the bay area told me it had to be fixed by Tesla. No one else would be able to.
Tesla did fix it for free though, because they weren't sure it wasn't an installation issue (no impact point, just a hairline crack running down the glass).
The model X’s windshield is massive and very hard to make. Only one OEM supplier in Peru was making it. Model 3s any Ys have more “mass minded” designs, not hard to make by third parties for aftermarket.
Tesla did fix it for free though, because they weren't sure it wasn't an installation issue (no impact point, just a hairline crack running down the glass).