20 bucks per month is way too much, i like kagi but there isn't a justification for this price over free alternatives like duckduckgo
For me at least it saves me whole minutes and lots of stress on about half my queries which means at $20 it pays for itself in half a month and as a free bonus I get better results for the rest of the month as well, an ad free experience, no tracking and the opportunity to support a Google competitor.