Microsoft won't let you use the new Outlook app for Windows unless you have installed Edge on your PC

Outlook Client Hero.

What you need to know

• Several users have posted screenshots on Reddit showcasing an error message asking them to install Microsoft Edge on their devices while trying to access the new Outlook app for Windows.
• The main reason why this is happening is because the app leverages the Microsoft Edge Webview 2 for various web functions.
• Mozilla recently placed Microsoft under fire for using deceitful and harmful designs to get people to use Microsoft Edge on Windows devices forcefully.