It can bring some traffic since it has little below 100 million traffic searches per day. But that is only 2.5% of total daily search on web. More important is over 40% users is from US.
DuckDuckGo start lose users since they always advertise how they don't collect users data and talk about privacy. Some investigations show how they sell data to Microsoft. Source: https://techcrunch.com/2022/08/05/duckd ... g-scripts/
If you managed to rank on the first page of Google, it is very likely that you will also rank on the first page of other search engines including duck duck go