I think NVidia is not particularly worried about it.
NVidia is an odd duck because they are profitable. And, they have now locked in long term contracts in business, industrial, automotive, aerospace and more. NVidia also has a surprisingly small footprint. Only 42000 employees. Facebook by random comparison has 77000, IBM has 264,000. They have $80 billion in cash and infinite credit lines.
Jensen is already working on the next big thing because he knows data centers is short term. And consider this, a full populated HGX B200 Board (8 GPUs + Baseboard) which costs $350,000 a pop, they have a 75-80% margin (all public info) and they sell data centers full of then. And, oddly, even though it will be a fraction of the margin, NVidia's consumer CPUs are soon going to utterly eclipse their data center profits because they let Qualcomm foot the bill to get Windows on ARM ready, got Microsoft to tune WoA for NVidia, and my guess is, they'll get MS to seed 5000 developers with dev units at Build.. which Qualcomm didn't do... which is why they failed.
I have been testing Intel ARC heavily for a week for local AI. Intel has a lot to do. I don't think AMD even has a plan.
Jensen is creepy as hell and is using FUD to cash in. And this announcement will have him staging a dinner with someone important to make a big deal about how this will push China into the lead and the US needs to get serious.
BTW, Deepseek making their own chips is a non-starter. They already have a tiny footprint compared to their peers, they actually wouldn't profit from it. It might just ge a fund raiser.