I dont think an existing cloud provider makes sense since they’ve all ramped their efforts pretty hard to compete with each other. I would suspect AAPL would be the buyer. It is a big risk for all iOS apps to be backed by infrastructure belonging to other companies they compete with in consumer devices. I think AAPL would want to make another option available.
I guess iCloud is hosted on AWS? I never actually looked. It doesn't seem to be that big of an issue for Apple though. And if it did happen I guess that wouldn't be so bad, I mean it could be worse. Oracle could decide to get into the cloud business by buying out DO.
This was never the case. They are self hosted and for a while they hosted a fair bit of data on Azure & AWS. Not sure if they still use Azure and AWS, but iCloud has never been on Google's infra. (Other Apple content has been served by Google at various times, maps being the big/ obvious one)
