You don't understand. They mean the laptop literally called just the Macbook. It's a 12 inch fanless laptop.
https://www.apple.com/shop/buy-mac/macbook
This is why these 'simple' naming schemes are confusing.
https://www.apple.com/shop/buy-mac/macbook
This is why these 'simple' naming schemes are confusing.
Obviously newer models are different from older models, and Air models probably don't have the fans that Pro models do, but the claim that Macbooks don't have fans is a bit too broad to be true.