This is true. A screen that cracks for no reason, will usually only have a hairline crack or crack under the LCD (which apple will fix under warranty). I have s

This is true. A screen that cracks for no reason, will usually only have a hairline crack or crack under the LCD (which apple will fix under warranty). I have seen it and it's barely noticeable. We have deployed over 100 of the M1's in our ORG so my sample size is small, but of those 100's I have yet to repair a screen of an M1 that mysteriously cracked. We do apple care repairs on-site. With that said, I have seen most cracked screens come from shutting something (usually a writing utensil )in between the keyboard and screen. But's it's not our place to assume how it was cracked. Only that it is and it looks as if something hit it. Obviously, this is a simple explanation, but a screen that cracks on it's own won't look like it was smashed with a hammer.