These are user-specific (and, generally, user-writeable) directories.
platformdirs.user_data_dir
platformdirs.user_data_path
platformdirs.user_config_dir
platformdirs.user_config_path
platformdirs.user_cache_dir
platformdirs.user_cache_path
platformdirs.user_state_dir
platformdirs.user_state_path
platformdirs.user_log_dir
platformdirs.user_log_path
platformdirs.user_documents_dir
platformdirs.user_documents_path
platformdirs.user_runtime_dir
platformdirs.user_runtime_path
These are system-wide (and, generally, read-only) directories.
platformdirs.site_data_dir
platformdirs.site_data_path
platformdirs.site_config_dir
platformdirs.site_config_path
platformdirs.api.PlatformDirsABC
platformdirs.android.Android
platformdirs.macos.MacOS
platformdirs.unix.Unix
platformdirs.windows.Windows