In 2015, Cookie Monster filmed a viral video titled “Simply Delicious Shower Thoughts with Cookie Monster” for the Mashable YouTube channel. In the video, he explores various New York City museums, including the Metropolitan Museum of Art and the Guggenheim, while pondering deep “shower thoughts” about food.
When trying to make a lot of cookies fast and the same size, a good way to do it is to roll the dough into a cylinder and just slice it. So yeah, plenty of people do it that way. Altho the slices are usually thinner than sushi, but still.