You're right there is no way to specifically target the neural engine. You have to use it via CoreML which abstracts away the execution. If you use Metal / GPU

You're right there is no way to specifically target the neural engine. You have to use it via CoreML which abstracts away the execution. If you use Metal / GPU compute shaders it's going to run exclusively on GPU. Some inference libraries like TensorFlow/LiteRT with backend = .gpu use this.