Duckduckgo, made such a clever choice. By offering a dedicated “no-AI” offer (with the separate address as well, where you don’t have to mess around with any settings. It requires almost no additional effort for them, yet is a great marketing success because it is a big differentiator.

PS: duckduckgo also allows you to block sites popping up in search for future searches. This gets increasingly important to weed out scam and slop. Google of course does not allow that.