E.g. if I search for <a href='https://duckduckgo.com/?q=melbourne+restaurant&t=ffab&atb=v1... Restaurant"</a>, the first result is FL.
"Melbourne Indian Restaurant" is a bit better, but half of the front page results are still FL.
"Melbourne weather" always used to return FL, but that looks like its been fixed.
This is what I see when searching from the UK: https://i.imgur.com/XIxo4Jx.png
Quite clearly Melbourne, Australia. Maybe if you're in Florida it'll bias towards there.
(The ad is geolocating correctly, but the first actual search result is "Melbourne Brevard County Florida")