Responsiveness in Gutenberg Editor

I like Gutenberg as I am making my basic website. The site is fast and there is no overuse of div tags like Elementor.

The issue I have is responsiveness. Why did they give this mode (marked in image) when we cannot use it to make the page responsive? Is it just for viewing how my site will be displayed in mobile or tab?


This site will teach you how to build a WordPress website for beginners. We will cover everything from installing WordPress to adding pages, posts, and images to your site. You will learn how to customize your site with themes and plugins, as well as how to market your site online.

Buy WordPress Transfer