Internet Explorer 11 has retired
On June 15, 2022, Microsoft officially retired Internet Explorer.
Read the full story from Microsoft here.
Transition to Edge
If you attempt to use the IE browser, Microsoft will redirect you to download Microsoft Edge as an alternative to Internet Explorer (See an example in the image below).
If you currently use Internet Explorer, the conversion to Edge will allow you to transfer all your passwords, history, cookies and other browsing data.
Sites that require Internet Explorer
Legacy sites that require IE can be reloaded with IE mode in Edge.
See: How to enable “Reload in IE mode” in Edge.
Sources:
Microsoft's Internet Explorer browser is finally gone. But not everyone is a happy about it | ZDNet