I'm also having a weird issue related to the screen on a M1 Macbook Pro. Every other month, the screen randomly turns blank. The backlight still works, and every time the laptop opens it flickers for a couple of seconds with a bit of the image visible, so it seems that the screen itself is still working.

After a few days, it randomly works again after a reboot. But never immediately. I suspect something with the GPU, as a Shadertoy visit once triggered it.

The issue is irreparable. Once it gets into repair, and I've lost my laptop for a few weeks, it will randomly work again after a few days and they'll say there's nothing wrong.