Aimed to be the next level of cross-platform development, .NET MAUI is intended for devs who want to know more about mobile development.

Before .NET Core, the term 'cross-platform' was used by Xamarin.Forms to support building Android, iOS and Windows phone apps. Started with Xamarin. Forms, you wrote code once, and that code is deployed on three platforms at the same time. You can also build desktop applications using a single code base, targeting mac OS, Windows and even Linux.