> unlike when I used DDG, it's rare that I feel the need to fall back to Google.

Same here. I have now been using Kagi for about 6 weeks. While using DDG for many years (at least 9, probably over 10) I built up an automatic response: When the results aren't what I want and it doesn't seem to be a problem with my query, I add !g and expect better results on the other side. A week or two ago, while doing exactly that, I realized that my expectation for better results has disappeared. I'm now slowly learning not to do it at all.