Its ARM predecessor started in 2014: https://en.wikipedia.org/wiki/Fugaku_(supercomputer)
And before that they were the using SPARC64: https://en.wikipedia.org/wiki/SPARC64_V
I do find it funny how the harder some folks push for an outcome, the more they bring about the opposite effect.
I mean the US had this sense of confidence that they were at the top of the power structure, it was widely accepted and overall that position and deal seemed to benefit many others even if not to the same scale. For example with Europe, the US got favorable trade terms in exchange for defense.
Then the Trump administration came in and started pushing the narrative of MAGA, to almost be professional victims. Winner of the world lottery and yet still not happy. And so instead of making America Great again, they are on the fast track of being cut out of favorable global trade. They over played their hand. And once others end up being self sufficient again, it is very difficult to get back in the good books.
In trying to avoid being pushed around, they are now starting to see they could be pushed around.
Those questions didn't used to be significant factors.