Nothing is "entwined". I can download kubo and run it without even knowing what Filecoin is. In fact, every user of Brave browser does it. Same thing for projects like OrbitDB. Same thing for customers of Pinata.

I can download F2FS and run it on my RAM. That doesn't mean that F2FS isn't entwined with NVMe SSDs.

In fact, while F2FS is a ludicrous example, this happens regularly with filesystems. The core design of filesystems is still built assuming that a block device will be behind it. IPFS is the same way, just s/block device/blockchain/.

I'm sorry, I really have no idea where you are trying to go with this.

- You can have files on IPFS and no blockchain whatsoever "behind it".

- IPFS itself makes no use of blockchains as an abstration for data storage or file organization

- If all the blockchains networks and nodes disappeared overnight, no IPFS nodes would be affected.

I don't know if you actually used any of that or just going by hearsay.