To set up a DataGuard between a base database and a database running on ExaDB-XS, ZDM is not an option at the moment.
The setup can be done manually using a white paper and MOS note 2283978.1 as references.
Steps include saving configuration, spfile, and dropping datafile using xsh utility.
Other tasks involve copying the password file and TDE wallet, configuring a static listener, creating standby redo logs, copying controlfile and datafile to the destination system, and setting up the database broker.