It's more lightweight because it doesn't include a browser engine. The obvious downside is that there is more room for compatibility issues. I'm not sure it's worth it.
I agree. https://tauri.app/start/prerequisites/
> Tauri requires various system dependencies for development on Linux. These may be different depending on your distribution ...
> WebView 2 is already installed on Windows 10 (from version 1803 onward) ...
> iOS development requires Xcode and is only available on macOS.