it looks like they are comparing the cifs/samba Azure Files (https://learn.microsoft.com/en-us/azure/storage/files/files-...) service instead of the nfs (files - https://learn.microsoft.com/en-us/azure/storage/files/files-...) / sftp (blob - https://learn.microsoft.com/en-us/azure/storage/blobs/secure...) services which offer more posix compliance