WordPress permalinks are important for best Google search results because they make it easier for Google to understand the content of your pages and index them correctly. When you use a good permalink structure, your page titles and URLs will be more relevant to the search terms people are using, which can help your pages rank higher in search results.
The best permalink structure for WordPress is the Post Name structure. This structure uses the title of your post or page as the permalink, which makes it easy for Google to understand what your page is about. For example, if you have a post about “How to Make a WordPress Website,” the permalink would be /how-to-make-a-wordpress-website/.