We found 2 Reddit comments about Padded Dock Sock Cover Made for Nintendo Switch. Here are the top ones, ranked by their Reddit score.
There are options to remedy it. A screen protector is the most common, but I had issues getting it applied without bubbles and then the screen protector just got scratched instead.
I ended up buying a dock sleeve.
So I have an Xbox that I don’t really play much but I keep a cover on it so dust doesn’t get into the fan or anything. My switch is usually in its case, but if I kept it in the dock I would get a cover for the dock as well.
Something like this switch dock cover is what I’m talking about. There are probably many more out there that do the job, but that’ll keep your switch from getting dusty. Only issue will be remembering to remove the cover when playing docked.