Kagi has an option to search the Fediverse. This makes it a lot easier than specifying a site in the search query, which would also limit the results to a specific instance.
Why YSK: This lets you easily replace searches like “some topic reddit” with Lemmy!
From what I saw in the discussions regarding this topic, it seems they’re using various third party indexes alongside their own, similar to how Qwant does it with Bing. It’s unfortunate, but realistically other than building a full index like the one Google has, I don’t see many other options. Google and Bing are plenty evil as well, not just Brave and Yandex. Maybe if the Qwant + Ecosia index works out, then we won’t have to rely on companies like that. For now their position doesn’t seem unreasonable to me: https://kagifeedback.org/d/2808-reconsider-your-partnership-with-brave