A paper with printed text on a desk in candlelight is harder to read than any LCD monitor with full brightness emitting its own light. But out in the sunshine, the paper will have hundreds of times better contrast than any LCD. The same is true for eInk.
Frankly, I don't understand why you are arguing, when it is so ridiculously easy for anybody to test for themselves. Just bring your LCD or OLED device out in the sunshine along with your eInk device and see which one you can read from more easily.
TFT displays are really good in the sunshine, but eInk is still a bit better, only beaten by paper for real world contrast.
Has it been a long time since you've used eInk? Maybe they were worse in the past? My oldest eInk device is from 2018, so I wouldn't know about the screens that were before.
Frankly, I don't understand why you are arguing, when it is so ridiculously easy for anybody to test for themselves. Just bring your LCD or OLED device out in the sunshine along with your eInk device and see which one you can read from more easily.
TFT displays are really good in the sunshine, but eInk is still a bit better, only beaten by paper for real world contrast.
Has it been a long time since you've used eInk? Maybe they were worse in the past? My oldest eInk device is from 2018, so I wouldn't know about the screens that were before.