Reference : https://www.tabnine.com/code/java/methods/com.adobe.cq.dam.cfm.FragmentData/getDataType

As @Albin_Issac mentioned, Latest version of AEM ( Ex: 6.5.13/14) CF data will be stored under cf/jcr:content/data/master node and variations are under cf/jcr:content/data/cf1(variations)   To get CF propeties:  OOTB Content Fragment API will help to get all properties of CF which store under master...