A good approach is to create internal competition. More links to different URLs have the same anchor text, easier for Google is to differentiate which of them is the one URL on your domain to be ranked for the given keyword.

This statement is false. Creating internal competition by linking to different URLs with the same anchor text for the same keyword is detrimental to SEO. This practice confuses search engines, making it harder for them to determine the authoritative page for a given keyword. Instead of differentiating, Google may dilute the ranking power across multiple pages or struggle to identify the primary target. A better strategy is to consolidate ranking signals by linking to a single, most relevant page for a specific keyword using consistent anchor text. This strengthens the authority of that one page, improving its chances of ranking.