How is google cloud storage different from file storage?

Google cloud storage has buckets which are similar to folders and objects which are files, so besides the naming changes, what are the other differences between the two?

Google Cloud Storage has some specific features that differentiate it from a proper file system:

• It doesn't actually provide directories/folders, it only implements buckets and objects, i.e there's no concept of folders, nested directories, etc... See doc here for more details about that.
• It doesn't implement file modification. When you upload an update to an existing object, it actually replaces that object altogether with the new version (versioning is available though).

Google Cloud Filestore provides managed NFS file servers as a fully managed service on GCP. It is meant to provide high-performance file storage capabilities to applications running on Compute Engine and Kubernetes Engine instances.