Looks like you might want to be careful sliding your Switch into it's dock. I mean, you should be careful anytime, but images have surfaced showing some scratches towards the corner of the Switch screen.
For what it's worth, I investigated my Switch to see if there were any scratches. All four sides, not a scratch to be seen. I honestly think this might be caused by people who just plop/plunk the Switch down into the dock carelessly. I always make a point to use two hands and guide it in slowly.