Apple has many different types of data centers.

Some are actually hosted in a cloud provider like Google, Microsoft, or AWS.

But they also have a fair amount of their own physical data centers, and I would not be surprised to find that they start filling them out with Apple Silicon hardware.

And they might roll out a lot of services on AWS using Apple Silicon hardware, because AWS has recently made available actual Apple hardware in some of their regions. I think this could potentially be a precursor, but this is just my own personal hunch and I have no information outside my own brain towards this end.