Which are the best searx instances that uses qwant , brave search and duckduckgo as default engine for querying results ?
The best instance is the one that you run, most of the public instances support your request, so choose the one with the least amount of latency and in a country outside the eyes.
And if you want extra anonimity chose an instance aviable as a hidden service (tor/i2p).
Excellent suggestion, it will be a bit slow, but it will be anonymous.
Yeah, most of the times privacy / anonimity / security come with some short of UX downsides.