https://blogs.windows.com/windowsexperience/2021/05/19/the-future-of-internet-explorer-on-windows-10-is-in-microsoft-edge/

Quote:Over the last year, you may have noticed our movement away from Internet Explorer (“IE”) support, such as an announcement of the end of IE support by Microsoft 365 online services. Today, we are at the next stage of that journey: we are announcing that the future of Internet Explorer on Windows 10 is in Microsoft Edge. Not only is Microsoft Edge a faster, more secure and more modern browsing experience than Internet Explorer, but it is also able to address a key concern: compatibility for older, legacy websites and applications. Microsoft Edge has Internet Explorer mode (“IE mode”) built in, so you can access those legacy Internet Explorer-based websites and applications straight from Microsoft Edge. With Microsoft Edge capable of assuming this responsibility and more, the Internet Explorer 11 desktop application will be retired and go out of support on June 15, 2022, for certain versions of Windows 10.

Note: This retirement does not affect in-market Windows 10 LTSC or Server Internet Explorer 11 desktop applications. It also does not affect the MSHTML (Trident) engine.