The article states that the auto chips will be given priority for any new capacity that opens up, but that doesn't mean they'll be using a majority of it, just that they won't be limited by the companies that are using a much larger share of capacity for things like CPUs, GPUs and mobile chips. If the auto industry only accounted for around 3% of TSMC's sales last year, I wouldn't expect that to increase dramatically this year. But they can provide those companies with some assurance that they won't be limited by larger customers squeezing them out of any increased production they require. They're probably doing that to avoid potentially losing them as customers. Due to their relatively low share of the production capacity though, I wouldn't expect this to have much effect on the other, larger customers though. Companies like AMD and Nvidia will still be getting the manufacturing capacity they requested, just if a little more happens to open up somewhere, the auto industry may be given first dibs on it.