I'm a bit skeptical this is needed at all. I would've much preferred if Microsoft contributed to the already popular React Native for Web [1].
React Native already supports iOS, Android, and UWP. To add browser support all you need is something like React Native for Web. I made a small presentation a few months ago that shows this. Here's the source code: [2]. Take a look at the web folder.
Libraries like React Navigation [3] have also been built to support any platform that runs React code. It looks like Microsoft built yet another navigation library [4].
Also, check out React Primitives [5]. It aims to define a set of primitives that work on any platform that can be used to build more complex components. This is highly experimental, but I'm liking the direction where it's going, a unified React interface for any platform.
In addition, ReactVR is a great example of how React Native primitives can be extended to new emerging platforms [6].
Finally, React Native for macOS [7] answers the question that many have here about building native apps for macOS without relying on Electron.
React Native already supports iOS, Android, and UWP. To add browser support all you need is something like React Native for Web. I made a small presentation a few months ago that shows this. Here's the source code: [2]. Take a look at the web folder.
Libraries like React Navigation [3] have also been built to support any platform that runs React code. It looks like Microsoft built yet another navigation library [4].
Also, check out React Primitives [5]. It aims to define a set of primitives that work on any platform that can be used to build more complex components. This is highly experimental, but I'm liking the direction where it's going, a unified React interface for any platform.
In addition, ReactVR is a great example of how React Native primitives can be extended to new emerging platforms [6].
Finally, React Native for macOS [7] answers the question that many have here about building native apps for macOS without relying on Electron.
[1] https://github.com/necolas/react-native-web
[2] https://github.com/migueloller/HelloWorldApp
[3] https://github.com/react-community/react-navigation
[4] https://microsoft.github.io/reactxp/docs/components/navigato...
[5] https://github.com/lelandrichardson/react-primitives
[6] https://github.com/facebook/react-vr
[7] https://github.com/ptmt/react-native-macos