.NET MAUI is a new cross-platform framework for creating native mobile and desktop apps with C# and XAML. It allows the creation of apps that can run on Android, iOS, macOS and Windows from a single shared codebase. However, as a new technology, the ecosystem around MAUI is not as developed as React Native or other cross-system platforms, and it only supports C#. Additionally, MAUI may face challenges encountered by organizations using Xamarin in the past, including poor cross-platform tooling, mobile integration problems, developer availability and an immature ecosystem.
While Microsoft announced their commitment to MAUI as an open-source, mobile-first framework for mobile development, its success has yet to be proven. If you’re already using Xamarin, you may want to assess MAUI as a potential upgrade; however, if C# or Xamarin isn't part of your tool set yet, you may want to approach MAUI with some caution until the technology is more widely adopted and proven in the market.