I don’t know for sure, but if I read that comment correctly, those six companies are turnkey suppliers for the large computer brands.
Granted, it doesn't really matter from a security standpoint unless those subcomponents are ICs of some sort. Then again, there's probably some really clever ways to backdoor stuff even using "dumb" components.
It'd be nice if consumers had options for end-to-end supply chain assurances though.
“Proudly Made In Japan. VAIO, and authentically Japanese manufacturer, can boast of in-house design, manufacturing and support teams. Our level of commitment to Japanese technology and aesthetics that is a hallmark of VAIO’s craftsmanship.”
There's also a government shopping site for approved "MAS IT Schedule 70" desktops and laptops: https://www.gsaadvantage.gov/advantage/ws/search/gss_search and some of those say "Made in the USA", but I'm not sure of the extent of vetting they do of those component parts. They're mostly Dell and HP machines, but those vendors might have special pipelines for getting those special USA machines...? Not sure.
Translation: they attach the laptop display and hard drive in Texas, and charge 50% more.
A potential downside might be that you're limited to macOS or Linux only.
Though they seem old and overpriced. Not much left of Toshibas former glory. (For some models only anyway)
edit: https://us.dynabook.com/
AMD uses TSMC (Taiwan) and GlobalFoundries (USA, Europe, Singapore [2]).
So, answering your narrow question: yes, these chips are manufactured outside of China.
But the answer to your wider question is more complex: supply chain is so globalized that there will always be some components or subassemblies manufactured in China in any laptop, unless it's a state-sponsored multi-year effort to not have any.
1. https://en.wikipedia.org/wiki/List_of_Intel_manufacturing_si...