The Strix Halo mini PCs use the exact same chip, and have a much smaller footprint than any laptop. Have you seen the size of these machines? I can and have easily popped my daily driver computer into my very small backpack to attend a demoparty for example.

With the laptop you probably won't get silent operation at the peak 100-140w, i.e. you've now massively overpaid for lower performance.