What must you anticipate in this situation?

You answered correctly. In this situation, you need to expect that the cyclist might pull out to the left, for example to overtake the parked car, and you must also look out for oncoming traffic, as passing the cyclist may require you to use part of the opposite lane. The idea that the cyclist will simply dismount to let you pass is not something you should expect. German road rules require you to anticipate possible unpredictable behavior, especially from vulnerable road users like cyclists, and always be aware of oncoming traffic before you overtake.