I had an M1 Macbook Air screen delaminate for no apparent reason. I'm guessing that was the reason, but it looked like a giant bubble formed right in the middle

I had an M1 Macbook Air screen delaminate for no apparent reason. I'm guessing that was the reason, but it looked like a giant bubble formed right in the middle of the screen. I'm guessing all the edges delaminated? It looked like water damage, but of course was never in contact with water. The screen was replaced for free.