How to Confirm Google Has Indexed Your Backlinks
https://thebacklinkdesk.evercolumn.com/posts/how-to-confirm-google-has-indexed-your-backlinks
To confirm Google has indexed your backlinks, use the 'site:yourdomain.com' search operator to check for pages with links, or paste each backlink URL directly into Google search. A faster method is to check Google Search Console's 'Links to Your Site' report. If your link shows up in search results for relevant queries, it's likely indexed. For non-indexed links, submit them via the URL Inspection Tool for indexing.