Today Nvidia added $277B in market value, Wall Street's largest one-day gain in history.
Apple has, in my opinion, made one of the most significant advances in SoC with Apple silicon.
I know dedicated GPUs are a different beast, but wouldn't make sense for them to invest in a new dedicated GPU line to compete more directly with Nvidia? It is clear there is money to be made there.
Google has their own TPU line, but as far as I know, they are only allowed to be used via GCP.
If not Apple, what company has the cash and know-how to dethorne Nvidia?
Google, Microsoft and Amazon are actually doing something similar, the GPUs and special-purpose chips and hardware they are building are built to run mostly on their clouds. They are not selling their chips directly to customers and I doubt they will.
I suspect it will cost Apple and other companies a LOT to build general-purpose GPUs that they can sell directly to consumers, enterprises or data centers.
Actually you can take a look at Nvidia's biggest current competitors - AMD and Intel. They have barely moved Nvidia's GPU market share in the past few years, and are unlikely to be able to meaningfully compete even for the next few years. It's not just about building better hardware, it's also about the ecosystem (CUDA etc) built on top of the hardware, which gives Nvidia a moat today and likely will at least for a few more years to come.