Customers  have some application workloads running and planned to be implemented on OCP which need to mount S3 object store (bucket) as a FS (FUSE - file system in user space) directly in a container. Unfortunately, an S3 CSI driver is not officially supported by RH.

There are some csi with S3

https://github.com/ctrox/csi-s3

or

https://github.com/majst01/csi-driver-s3