I have the answer for you, Intel's GPU chips are on TSMC's process. They are not made in Intel-owned fabs.
There really is no such thing as "buying American" in the computer hardware industry unless you are talking about the designs rather than the assembly. There are also critical parts of the lithography process that depend on US technology, which is why the US is able to enforce certain sanctions (and due to some alliances with other countries that own the other parts of the process).
Personally I think people get way too worked up about being protectionist when it comes to global trade. We all want to buy our own country's products over others but we definitely wouldn't like it if other countries stopped buying our exported products.
When Apple sells an iPhone in China (and they sure buy a lot of them), Apple is making most of the money in that transaction by a large margin, and in turn so are you since your 401k is probably full of Apple stock, and so are the 60+% of Americans who invest in the stock market. A typical iPhone user will give Apple more money in profit from services than the profit from the sale of the actual device. The value is really not in the hardware assembly.
In the case of electronics products like this, almost the entire value add is in the design of the chip and the software that is running on it, which represents all the high-wage work, and a whole lot of that labor in the US.
US citizens really shouldn't envy a job where people are sitting at an electronics bench doing repetitive assembly work for 12 hours a day in a factory wishing we had more of those jobs in our country. They should instead be focused on making high level education more available/affordable so that they stay on top of the economic food chain, where most/all of its citizens are doing high-value work rather than causing education to be expensive and beg foreign manufacturers to open satellite factories to employ our uneducated masses.
I think the current wave of populist protectionist ideology is essentially blaming the wrong causes of declining affordability and increasing inequality for the working class. Essentially, people think that bringing the manufacturing jobs back and reversing globalism will right the ship on income inequality, but the reality is that the reason that equality was so good for Americans m in the mid-century was because the wealthy were taxed heavily, European manufacturing was decimated in WW2, and labor was in high demand.
The above of course is all my opinion on the situation, and a rather long tangent.