Light mode is pretty hard on the eyes in dim lighting, the same way dark mode is in full sun. Health-wise, it’s best to decrease the amount of light as bed time approaches and that includes screens beaming light into our face.

My computer defaults to light mode every morning and then I toggle dark later in the day when it becomes the more comfortable setting. So, for me it’s not really about “preference”.

Very happy to have dark mode Wikipedia for late night queries!