Update: It seems the post got hidden/removed so my posting can be ignored.
Hey,
i think the previous posting needs to be taken with care. To me it reads like ChatGPT created nonsense which doesn’t apply for OCIS at all 
For example i have found nothing about a “Storage Gateway” mentioned in any official OCIS documentation. Furthermore a reply in Is something like external storage in the long-term roadmap for OCIS? states that External Storages are currently not supported in OCIS while the text above states the opposite. In addition there is a Oracle Cloud Infrastructure (OCI) Storage Gateway so i think this is the part where the ChatGPT seems to have mixed things up.
Maybe some one of the ownCloud team reading this forum could clarify?