You can find evidence for both sides, because life is more complicated than that. Do you have 20/20 vision? Hi-def screen? High contrast? Floaters in your eyes? Cataracts? Are you tired? How is the text laid out? Line spacing?

Literally all of these can impact the answer.

Ok, now insert "broadly" or "generally" into the previous comment and respond to what they actually meant.

Mixed evidence like they said, it depends