As of now we are only targeting (ios and android we are planning for desktop elements but once desktop embedding is released in production same can be said for web as well)
android control reference : https://developer.microsoft.com/en-us/fluentui#/controls/android
ios control reference : https://developer.microsoft.com/en-us/fluentui#/controls/ios
this project is still in active development, and it's not ready for alpha so for most cases it might not stable, and it can also receive braking changes frequently