That probably explain why they're investing so much in RISC-V.

They already have their own x86 chips. They're a few generations behind the cutting edge. They've been catching up fast which is why the US and EU have been shitting their pants trying to wage cold war. All of a sudden ramping up the China bad narrative out of left field when not long ago they were trying to work with China rather than against them..

Much of the manufacturing difficulty we hear about with western industry is achieving highest yields possible of the most powerful chips to please ravenous shareholders demanding flawless profit gains every quarter. Capitalism problems in other words. It's much different when your goal is merely to produce computers for government office use. You can still use old computers for the majority of computing needs.

New ARM chip from Loongson is supposedly competitive with Zen 3 (launched November 2020).

you dont need much to run most government level computers, and I say this knowing what lind of conputers in general some of the U.S offices were running. China already has their own build of linux for government computers, and deceloping a basic cpu for governmental office purposes wouldnt be too difficult in thr grand scheme of things.