You must be joking. Google ties all of your searches to you wether you log in or not.

I’m certainly not joking. Google when it started it wasn’t as evil as now, but the bigger it gets the more evil it becomes, who knows what kagi will turn into if they got as big as google. But again on principle, can you use google search in the library without an account? Yes. Can you use kagi in the library without an account? No. So whenever and whatever you do, your queries are logged and tracked back to you, only waiting for xyz to be pulled out.