Goldbach, Lubitz? Muslim?
Semitic perhaps but not Isamic names
Lubitz and Goldbach are German language place names. Typically so.
Austro-Hungarian Empire required use of family/last names. A lot of people just used a place name associated with their family.
My question is, "Has young Andreas perhaps come under the influence of the ROP?" There are hints and rumors a-plenty, but no factually reliable demonstrated connection ...yet.
At this stage of the investigations, there are many more questions than answers.