After reading [0], I wouldn't want to use Bing without at least a VPN. Not sure if Microsoft has fixed this already, but I don't want to rely on governments/ISPs/anyone on the network knowing the difference between a user-initiated request and an AJAX request for search suggestions.

[0]: https://www.reddit.com/r/sysadmin/comments/p2gzi9/bing_searc... and https://www.reddit.com/r/sysadmin/comments/p2q4kw/rebing_sea...