My 3a XL has fallen many of times without an issue (in a case) usually on laminate flooring or something relatively bouncy, but the other day I dropped mine on carpet no less and the OLED screen under the glass cracked and killed the screen. The glass on top was totally fine, but the screen underneath just had big crack across it and some rainbow colors.
I tried looking for replacement screens and they are out of stock all over the place and relatively expensive starting at $100ish from places I would consider more reputable and maybe 10% less elsewhere. I'm not sure if the lack of screens lends credence to how easily they break, but it certainly can't be used to disprove it.