German Universities for the most part do not have graduation ceremonies. You walk to the administration and pick your degree certificate and go home. If you can’t wait around they mail it out to you. I’ve never heard of any yearbook either. German Universities especially for science subjects are not in the business of emotions.
Nowadays a few, mostly private universities have a ceremony or the other. These are recent things and mostly limited to foreign owned private universities. Magdeburg in the 60s? I’m 99.99% sure they didnt have such nonsense.
Achana na hawa kina @Phoenix007, people who are ignorant usually make the loudest noise.