Google’s John Mueller has suggested users not to use link operator. Link command could be used to find the pages linking to a URL: link:www.domain.com.
However, as we see Google’s Search Console Help document has bot been updated as yet. It still says, “To find a sampling of links to any site, you can perform a Google search using the link: operator. For instance, [link:www.google.com] will list a selection of the web pages that have links pointing to the Google home page. Note there can be no space between the "link:" and the web page URL.”