On my website, I use anchor tags to navigate as it's a single page. With that in mind, my links for the main nav look like:
https://www.example.com#about
https://www.example.com#contact
https://www.example.com#pricing
It's my hope that Google will see this navigation and build the sitelinks on my search listing from them but if they don't count as internal links then I don't think this will happen.
Could someone clarify, do they count as internal links or should I split the site into separate pages?