The page builder works, in principle, in a very similar way, but it has many more features, especially for managing the structure of the page and customizing its appearance. In addition, it is easier to use because it is based on the drag & drop technique, which consists of "grabbing" the elements with the mouse and placing them where you prefer.
Page Layout
First, building the page structure and placing elements within it is very different denmark phone number list between Gutenberg and page builders.
The block editor lets you create sections and columns, but page builders are much more flexible. Both have templates that you can reuse and modify as you wish, but Gutenberg's selection is much smaller.
Furthermore , regarding the position and size of the elements, page builders allow you to use drag & drop, that is, to drag the object to the desired point on the page, to place it next to other elements, and to resize it simply by dragging its edges.