> I looked into the Cliqz browser a few years a ago. Back then they claimed to be a privacy respecting alternative to Chrome. What I found back then is that they sent every keystroke I type in the URL bar to their own servers. They outright lied about that in their terms.

That's called typeahead search, and that's how it has always worked since the invention asynchronous HTTP requests.

If you know of someone that sends a trie down to the client containing every possible completion a priori, I'd like know about it.