I use light mode in the day when it’s bright, and dark mode at night when it’s dark. Neither mode is “better” for me, but two things are true for me:

- Dark mode is harder to read when it’s bright out

- Light mode is blindingly bright when I’m in a dark room (and turning the brightness sufficiently low makes everything look washed out.)

My devices change from light mode to dark mode at sunset and it’s basically ideal.

Also it’s nice to just have less artificial light as the sun sets, which makes falling asleep naturally a bit easier.