Light mode is lower contrast for me, and is more difficult to read text, especially at the end of the day.
Dark mode is a relief, and much easier to read for me.
I miss it in the situations when it is not available, like PDFs with small grey text on a white background, more so on a small screen like a phone.
Some people think dark vs light is opinion, but for some it is not.
more: https://www.nngroup.com/articles/dark-mode/
- dark mode may present some advantages for some low-vision users
- in users with normal vision, light mode leads to better performance most of the time.
- applications meant for long-form reading (such as book readers, magazines, and even news sites) should offer a dark-mode feature