Microsoft now has made their Edge browser Chromium compatible with its latest release on January 15, 2020. New Edge browser extensions are also available.
The new Microsoft Edge will replace Microsoft Edge Legacy with the Windows 10 Update on on April 13, 2021. Other changes include vertical tabs and new privacy settings.
Internet Explorer Mode in Microsoft Edge is available to view older websites that do not run as intended using modern web browsers.
Update: Internet Explorer 11 desktop application will be retired on June 15, 2022 for certain versions of Windows 10. More information on this is available at the FAQ page.