Qualcomm is fabbing the chip on an unspecified 4nm process. Given their previous performance issues with Samsung’s 4nm line, it’s a very safe bet that they’re building this chip at TSMC – possibly using the N4P line. The silicon itself is a traditional monolithic die, so there is no use of chiplets or other advanced packaging here (though the wireless radios are discrete).
Has there been any information about what process node they are using?
Edit: Speculation from an earlier Anandtech article.
https://www.anandtech.com/show/21105/qualcomm-previews-snapdragon-x-elite-soc-oryon-cpu-starts-in-laptops-