Which AWS solution gives companies the ability to use protocols such as NFS to store and retrieve objects in Amazon S3?

Amazon FSx for Lustre is a high-performance file system designed for HPC workloads, not for gateway-based access to S3 objects via NFS/SMB for general file storage.

AWS Storage Gateway volume gateway provides block storage to on-premises applications that can be backed by S3, but it does not offer a file interface (NFS/SMB) for S3 objects.

AWS Storage Gateway file gateway presents a file interface (NFS and SMB) to on-premises applications, allowing them to store and retrieve objects directly in Amazon S3 as files. This effectively bridges the gap between on-premises file-based applications and cloud object storage.

Amazon Elastic File System (Amazon EFS) is a fully managed NFS file system for EC2 instances and on-premises servers, but it stores data directly in EFS, not in Amazon S3.