Google’s claim that search users have choice is “bogus,” Microsoft CEO tells judge::Google’s search dominance creates “vicious cycle,” Satya Nadella testified.
Google’s claim that search users have choice is “bogus,” Microsoft CEO tells judge::Google’s search dominance creates “vicious cycle,” Satya Nadella testified.
Source: Wikipedia
So it’s definitely not a “proxy to Bing” but it does use data from Bing.