It was a less then year ago that Huawei could still order chips at TSMC, until the US changed the rules and forced TSMC to swallow that bitter pill. Huawei did sourced their parts quiet well and find replacement antennas and other components quiet fast in the start of the tech war.
Could China prepare better maybe and they did but it never really got anywhere far from what i could gather. Mostly because Chinese big tech had access to TSMC as a fab. At the end of the day its software that makes money not the high end of the hardware.
Huawei can get very far with software just look at the google pixel phones, mid range hardware but super optimized software. Some companies can just extract more from the same resources then others, you see it mostly in US game industries. What some of those game studios can get out of those game consoles is just absurd.