Totally FWIW...
Relatively speaking, no one uses Bing -- this graph shows that in rather stark fashion. [Note that many references say Bing use is higher in the US than in other parts of the world, so for you in the UK, WR, it's even fewer than that.]
gs.statcounter[.]com/search-engine-market-share/all/united-states-of-america
Obviously this is not something that Microsoft is happy about, so they try to force Bing on you from time to time [at least with usage so low they can't be accused of monopoly tactics ;) ]. They tie it into Win10 by default, and next month they're trying to force-feed it on their corporate Office 365 customers.
petri[.]com/microsoft-search-chrome-extension