I had an issue awhile back with my Fold 2... dead pixel, it was near/on the crease.Thats sad to hear, it's certainly an issue which can happen. Guessing no drops or anything? luckily I've not had any issue.
I do worry though as I did drop mine once with no damage but just hope long term nothing happens
Got it repaired and I haven't looked back since, I completely understand that there is an inherent fear when it comes to unfolding the device. I guess I apply the logic of "fool me once, shame on you... fool me twice, shame on me."
God forbid, if something happened to this Fold 4 (since I'm on a new generation), I'll get it replaced/repaired... but I personally wouldn't let one incident rule me out. But I can't fault anyone who don't share my same logic.