Google's AI overviews give wrong answers 9% of the time (1.25 billion times a day), and in over half of the cases point to websites that don't actually support the answer given.
https://futurism.com/artificial-intelligence/google-ai-overviews-misinformation
Analysis Finds That Google’s AI Overviews Are Providing Misinformation at a Scale Possibly Unprecedented in the History of Human Civilization

A new analysis commissioned by The New York Times suggests that Google's AI Overviews are wrong an astonishing percentage of the time.

Futurism
I tried duck.ai a few times and most of the source links it gave me were either 404 or unrelated.