AMD and nVidia are not telling the truth, because the truth is blatant and damning....
China (ie:CCP) is holding 60% of all dGPUs shipments... and hoarding them. China is telling nVidia and AMD that they are tied up at ports and shipping, but both CEO's know the truth. They are all being blackmailed by CCP and if they say anything, or shine light on actual reasons, instead of CCP's "shipping/port woes"...
There is evidence that CCP is actually mining on new cards, THEN reselling them as new, after 9 months of usage. Several now famous pictures of this. AMD and nVidia are not talking about this..... they are biding their time until FAB and assembly open up elsewhere.
Again, both CEO's of nVidia and AMD penned a letter to Congress, about "issues" and the need to open more FABs up in USA. So that consumer can not be manipulated by CCP.