I'm not sure how helpful this is, but I bought the Dell S2716DG and my first panel had 1 red subpixel stuck in a closed state, so I RMA'd it (Dell has a great warranty policy) and the replacement monitor I got had no dead/stuck pixels, yet after using it a bit I noticed it seemed grainy - something I didn't notice on my original monitor. Both were the same A07 revision, which I thought was strange to see any real difference like this. If I move an image around the screen the image becomes grainy or pixelated; it's easier to see when moving slow to medium speed, but not too slow or the effect doesn't happen. I still had my original monitor which was yet to be sent back to Dell, so I was able to swap each monitor in and out and recreate the exact same series of events with the same monitor settings and my first monitor was perfect and the replacement was grainy. I honestly can't figure out if it's a defect with the replacement monitor or if the anti-glare coating is grainier on the new model, but it seems that consistency is not great on these monitors. Dell was willing to RMA the replacement monitor, but of course now I'm wondering if I should've just said nothing and lived with one stuck pixel... the grass seems greener on the other side. I can update once I get the second replacement to see if my first monitor was a unicorn with it's perfect screen (other than the one pixel) or if the replacement was really the outlier. The reason I'm posting my anecdote here is that I literally have found nothing even remotely similar to this experience based on any Google searching I've done and this seems to be the closest experience to mine.