[s_y_n_t_a_x]

That's why ReactNative is my preference. There are forks of it that target Windows and MacOS using their native controls. Microsoft maintains the Windows ReactNative fork (https://github.com/Microsoft/react-native-windows) and they wrap React, ReactNative, and the desktop forks in their ReactXP project.

I don't trust Google to emulate a perfect UI among all platforms. I feel like they're generating too big of a workload for no reason, it's a big red flag. I think eventually they'll give up on emulating native controls and choose a unified appearance for all platforms (forcing Material design for everyone) as well as giving the option to customize. I think their endgame is to push Flutter as much as possible so they have Fuchsia developers, then let the other target platforms go unmaintained. Their language, their OS, their devices.