Yeah, we do yearly comp reviews not with stock grant numbers, but with total comp targets.
So if you do mediocre one year and get a mediocre grant, then kick it into high gear next year, but the stock grew in the meantime, you're told "tough luck" and not rewarded for the extra effort. Or at least stock growth is deducted from your effort reward.
It's absolutely insane, but Amazon is the easiest faang to get into