According to Google, your website URL structure is displayed in a breadcrumbs-like format on mobile search result.
This is to help mobile searchers to understand your website better. Having a well URL structure is important. If you are using WordPress and your site is new, you should update your permalink to use the following link structure
/%category%/%postname%/To update your permalink, you can login and update at “Settings -> Permalinks” as follow and click “Save Changes“
