NFS isn't stateless since NFSv3 was introduced more than 25 years ago. There was a remote fs before NFS which closely mimicked Unix file system semantic (AT&T'

NFS isn't stateless since NFSv3 was introduced more than 25 years ago. There was a remote fs before NFS which closely mimicked Unix file system semantic (AT&T's RFS). There's a reason you don't read much about it.