[brudgers]

If there is a difference, I'd suspect it to be the result from a combination of environmental, ergonomic, and physical factors. The subjective experience could be shaped by slight differences between monitors; directional glare, acoustic comb filters and air drafts; habits related to posture, ocular dominance, or physical ailment; or a preference for interacting with the IDE via mouse or keyboard. Which is to say, that a good first working hypothesis is that the phenomenon is limited to "this place, this work, this time, this equipment" rather than generalizing to an intrinsic property of the person.

My advice: keep working with the IDE on the right so long as it makes you happy.

Good luck.