Hi, I bought a MacBook Pro 16" M1.
For me, it seems vice versa. I never had problems mit MacBook display. I sold the 16" inch Late 2019. The display worked well for me.
Now, since 2 weeks I have left eye problems, together with headaches and left neck pain.
I had this left eye problems since 2005. I bought a Acer Laptop with a ugly 1680x1050 display. 2008 I changed to MacBook and Apple displays. The problems gone and never came back. This year I bought two LG 32" 4K displays. The problems came back, so I sent the displays back to Amazon. Instead I bought the very expensive Apple XDR display. The left eye problems are gone. Also with my iMac Late 2014 5K display I never had problems. Same with iPhones and iPads during the last years.
I never thought that the problems come back. Now I'm very frustrated now, because 14" / 16" M1 displays are very beautiful, combined with perfect features for a Pro like me.
I hope, that it is the perfect display for you.
And if anyone has an idea, why I have the problems. Any hints are appreciated. In the past I thought lower resolutions and blurry fonts are the problems. That seems not the case and I really don't know what'S the problem here. As I read here, PWM could not be the reason, because Mini LED has no PWM.?