While I did see Kagi recommended on Lemmy, I've made the switch because of a recommendation by my colleague at work (now that I thing about it, that would funnily probably be the case even if I was actually working for Kagi :D), and it has been a nice experience so far. Plus, we've just been talking about it today at the office, so I was in the mood of sharing :D But I haven't done any actual search comparisons, so it may just be placebo. I'd probably say it's caused by a lot people trying to be more privacy-centric here, and mostly deeply against large corporations, so the software recommendations tend to just turn into an echo-chamber.

As for the second point, yeah, I guess you are right, Brave Browser being one of the finest examples of it. But it's a good reminder that I should do some research about the company and who's behind it, just to avoid the same situation as with Brave, thanks for that.