factually.co/…/does-duckduckgo-track-you-809f45

blog.ssuiteoffice.com/…/duckduckgo-privacy-contro…

tldr; DDG specifically allows Microsoft, a company that profits from collecting specific user data, to collect some (anonymous) user data through its ad program.

I don’t think it’s proven that DDG creates user profiles like Google does, more that there is a concern that they receive their money from Microsoft, or that they have agreements with Microsoft to send them any data in the first place.