Today, Kagi has a negative incentive to even historically track user search data (if discovered, their business would be cooked). Consequently, it's very likely they're being honest and don't.
Furthermore, they're building a sustainable business around subscription revenue.
In the event any of the above changes, they still won't have any historical data to share.
As opposed to Google, who keeps things in their vaults until the heat death of the universe.
> And I'd rather sue Google than Kagi.
Ha! You and what European data authority supporting you? Because that's the only way you'd have a chance of making headway.