It's been a long time that I knew about cloud storage and decentralised storage networks but I have never for once thing that this use case will survive in crypto space because I don't see any reason for adoption. Now I guess I am wrong ..
File coin and Arweave are good example but I have a question in mind, anyone on here using this platforms for storing files? I'm still shocked they survive and doing fine.
Proof of capacity has become one big thing in the market and there have been projects known for being focused on storage but they're not in the cloud.
And with those projects you've mentioned that are focused on cloud storage, I think there's a place for them and it's just a matter of time until most people would be looking into it. But the thing about the market is, it's all about investing and whichever becomes the most profitable, then people will be quick to go there.