You won’t get the latter. The PLA will have dibs on fab capacity for military use, assuming they can stop the west from bricking the lithography machines.
Eh all the workers has to do to significantly delay production if not outright make the facility unusable to the Chinese is to flood them with sea/lake water.
The whole point of the silicone shield policy is that ALL Taiwanese semi-conductor manufacturing will stop if Taiwan is invaded. I don't know why they specifically call out Nvidia GPUs. It's not like we will have a lot of time for gaming if WWIII starts.
edit: oh the article is written by pcgamesn.com. That makes more sense.