This condition can be caused by blinking less than usual when looking at a screen. Our standard 15 blinks a minute can dip as low as 3.6 when we’re gazing at our phones or computers – contributing to dry eyes. According to the American Optometric Association, symptoms associated with DES can include headaches and blurred vision.

That's the only relevant part of the article.

well... it depends... I noticed during daytime in an well lit ambient, its better not to use dark mode, while at night with poor light dark mode is better... dunnoh.. i Guess everybody should check it for themselves, just pay attention how your Eyes / Eyeballs feel

I don't buy it. In dark mode, my eyes don't feel like an egg being slowly poached... dark mode FTW.