The downside to that is that you have to be reading white text on black background, otherwise it's the same as if it was backlit, and the text itself is lit up. E-ink displays require external light sources.

I use both lcd and oled. While oled is better, it's still self lit vs lit from an outside source (like paper and eink). That self lit portion is what bothers me after awhile. And yes I use dark mode with blue light cut and pretty dim screen.

My wife, meanwhile, has the light of a thousand stars in the palm of her hand, and it doesn't bother her.