Does every GN4 version has "own" directory styles?

The answer is Yes!

All GN4 versions has a separate set of configuration files, and "own" versions of directory styles. Therefore, if you manage more GN4 versions at once, make sure you locate the appropriate folder for the configuration files.

Have in mind though that usually the directory styles do not change much or at all between versions, but it may happen that newer versions have more, less or different directory styles.

See also

Does every GN4 customer has "own" directory styles?