Not sure I understand the question - std::filesystem is 'just' a (mostly) cross-platform abstraction of files and directories, it doesn't know or deal with the

Not sure I understand the question - std::filesystem is 'just' a (mostly) cross-platform abstraction of files and directories, it doesn't know or deal with the concept of 'filesystem'. (maybe the problem is in terminology - 'filesystem' in std::filesystem doesn't have anything to do with 'filesystem' as in ext4, zfs etc.)