Microsoft allows Microsoft Edge users to change the default search engine from Bing to another one of their choice. Users can select from a variety of pre-configured search engines such as Bing, Yahoo, Google, DuckDuckGo, and Ecosia. You can also create custom search engines to be used as the default address bar search or for using tagged searches. These keywords can be changed in the ‘Manage Search Engines’ screen. When you search from the Edge address bar the newly selected search engine will be used instead of Bing.
Source: https://www.bleepingcomputer.com/news/microsoft/how-to-change-the-default-search-engine-in-microsoft-edge/