Breadcrumb is an indispensable element for users and search engine bots who want to return to the previous category on multiple-page websites (E-Commerce, Blog, etc.), understand the site hierarchy, or see other pages relevant to the page you are looking at. In short, it greatly increases the usability of your site and is liked by search engines.
When we look at the user experience, it will be easier for users to stay on your site. If there is something that is known by every SEO expert, it is also appreciated by Google that every improvement is made to the users. Nowadays, when you think that more than half of the internet traffic is provided from mobile, the use of this structure makes the link part of the pages in the search results more remarkable.