Bing as default search engine in ProPlus update in Feb 2020

Beginning with Version 2002 of Office 365 ProPlus, Microsoft will install a browser extension that makes Bing the default search engine for Google Chrome.

You can disable the extension by:

Clicking the search icon (magnifying glass) to the right of the URL bar;

Then toggling off Use Bing as your default search engine; and

Restarting the browser.