Microsoft’s Windows and foreign database programs also sidelined as Beijing favours Chinese hardware and software
Among the 18 approved processors were chips from Huawei and state-backed group Phytium. Both are on Washington’s export blacklist. Chinese processor makers are using a mixture of chip architectures including Intel’s x86, Arm and homegrown ones, while operating systems are derived from open-source Linux software.
Additionally to the other answer: the reason CISC came up to be was “less instructions”. Memory was a lot more expensive, and developers worked in assembly a lot more. So, less instructions made a lot of sense. Now, memory is cheap, and developers almost never write assembly unassisted.