OCIS support e2ee?

https://owncloud.com/features/end-to-end-encryption-2/

ocis self-host sever support e2ee file manage?

There will be an E2EE solution for ownCloud Infinite Scale … aka ownCloud Web and the Infinite Scale backend. We don’t have concrete plans for the timeline yet and might recommend other solutions.
Can you ellaborate a bit about your use case or contact us at sales@owncloud.com
Thanks!