I don't have astigmatism, but I also find dark mode unpleasant. My memory is that it became a thing not so much because of eye comfort but because OLED display

I don't have astigmatism, but I also find dark mode unpleasant. My memory is that it became a thing not so much because of eye comfort but because OLED displays use less power when displaying black. I could be misremembering, though.