Google’s “Do a Barrel Roll” Easter egg is a playful trick that rotates the screen 360 degrees when you type “Do a Barrel Roll” in the search bar, it does not matter the number of times you specify after it, the outcome will be the same, just one rotation.
It’s important to note that this is just an Easter egg, a hidden feature or trick, implemented by the Google team for fun and it does not have any practical use. This trick works on desktop and mobile browsers, but not on all browsers or devices. The number of times you want Google to perform the barrel roll does not affect the outcome, it will do it just once.