True sync with Google Contact?

https://docs.erpnext.com/docs/v13/user/manual/en/erpnext_integration/google_contacts

The idea is simple, just sync.

Is it true sync? Ie when I update existing records in Google Contact, sync, it creates new Contacts in version-13, not update existing Contact to new values.

Is this working in the sense of true sync in version-14, and/or the latest version-13 please?