https://arstechnica.com/gadgets/2024/09/microsoft-releases-a-new-windows-app-called-windows-app-for-running-windows-apps/

Microsoft announced today that it's releasing a new app called Windows App as an app for Windows that allows users to run Windows and also Windows apps (it's also coming to macOS, iOS, web browsers, and is in public preview for Android).

On most of those platforms, Windows App is a replacement for the Microsoft Remote Desktop app, which was used for connecting to a copy of Windows running on a remote computer or server—for some users and IT organizations, a relatively straightforward way to run Windows software on devices that aren't running Windows or can't run Windows natively.