fs_type is considered a type of file system which is only
used in implementation of the OS. This is primarily used for hiding
mounted volumes that are intended as APIs for programs to read, and system
administrators at a shell; rather than something that should, for example,
appear in a GUI. For example, the Linux
The list of file system types considered ‘system’ ones may change over time.
a file system type, e.g.
fs_type is considered an implementation detail of the OS.