pg_dump - how to split it into directories and files?

I am looking for a way to dump PostgreSQL12 database model into a directory/file structure, instead of a single file - for versioning purposes. I found this old thread , which mentions this exact case and describes a --split flag to be used with pg_dump. However, this option does not exist in the current pg_dump for PostgreSQL12. I also tried the option --format=directory but that's not it. How do I achieve this effect?