ONNX Runtime: If no GPU, gracefully use CPU instead?

Question

I've only used ORT for CPU. It looks like there is a separate NuGet package for the ORT for GPU. If I use the GPU version, if there is no GPU on the machine its running on, will it "Gracefully" run on CPU instead? I would think almost everyone deploying an application (on the edge) would want this behaviour -- use the GPU is the user's machine has one, else use CPU. Have they set it up this way?