OK, so I am 90% sure that Alembic and FBX export will not be available for Apprentice. Import yes, export no.
There is a “whois” expression which I will look into. It should allow you to change the output to .bgeo or obj when the user has apprentice, but leave as Alembic for Houdini and HoudiniFX users.
update to follow (probably after the long weekend I'm afraid)