It is better than Google for non-English content. You can try it for yourself.

When people say that Bing or DDG is good enough to use instead of Google, it is obvious to me that they are only searching in English. Kagi was the first search engine that could compete.

Visibly worse than searching for English content, but not bad overall. You still get random English results in between, like in DDG, which doesn't happen in Google.