welcome to web engines! your choices are:
- reference implementation maintained by a big advertisement company, building an ad profile of you, popular in part due to smartphone duopoly,
- engine that doesn't really improve because that would endanger the micro-transaction fee business,
- engine "backed by a non-profit" (which owns the company that is now also in the ad business),
- a previously abandoned "rewrite it in rust" initiative,
- engine that started because a guy needed a project to work on for addiction recovery