Of course Mac running Safari is a glorified boolean circuit. It's programmed in a way to show the pixels on the screen in a way that you understand, and take inputs from your mouse and keyboard in a way you understand
It would be possible to make a web browser out of a different type of logic circuit. It's the higher-level structure of the browser that matters, and not the fact that it is built out of boolean logic.
Similarly, with ChatGPT, it is the higher-level structures (whatever they may be) that matter, and not the low-level details of the neural network. The higher-level structures could be far too complex for us to understand.