Yeah. The Filet-o-Fish used to be a square patty that filled the bun and the corners of it would stick out of the bun. It was covered with an entire square police of American cheese. Now it's a rectangular little thing barely bigger than a fish stick, and the slice of cheese likely less than half of what it used to be.
True, the fish patty has shrunk over the years, but even 50+ years ago when I worked at a McDonald’s, a Filet-o-Fish got a half slice of cheese.