I wonder if there is a perception bias that comfortable headphones sound better, or better sounding headphones are more comfortable. (Not limited to these two options, just a passing thought)
Grado are everything but confortable to me, they sound much better than a "siberia elite prism" I got for gaming and chatting, but I usually end up plugging the latter to my small xduoo-xd05 dac when listening to pretty much anything because after a while my ears do not hurt. In my experience then, I just use the better sounding headphones for "special" listening, and there is a clear difference in sound quality between them.