IMO unless you refuse to play the LLM game altogether (then you wouldn’t be having this discussion in the first place), at the end of the day you’re using tech built on top of disrespecting every IP claim and TOS out there on a fundamental level, so no one’s clean and it’s only a matter of how much you can deceive yourself into believing you’re clean.

On a practical level though, using searxng and co. and playing the game of cat and mouse with providers that really don’t want you to use it is just not worth it unless $0.75 per 1000 searches is really expensive to you or you really need the anonymity.