No. Where did you get that from? Compiling dart into WASM is a highly requested, but unimplemented feature (it's not really necessary for most cases you'd think). https://github.com/dart-lang/sdk/issues/32894
The CanvasKit renderer, which at the time of this GitHub comment [0] was experimental but is now the default one (the other being a HTML renderer rather than a canvas renderer, but that had some problems and was not as fast as the canvas implementation, so it was overridden by canvas), uses WASM and WebGL.
