What is the right course of action here?

In this situation, the correct decision is not to overtake the cyclist for now. German traffic regulations require that you only overtake a cyclist if you can maintain a minimum lateral distance of at least 1.5 meters in urban areas. If the road is too narrow, traffic conditions do not allow safe passing, or your view is limited, you must wait behind the cyclist until it is clearly safe to overtake.

It is never allowed to pressure a cyclist by sounding the horn or overtaking without sufficient clearance. Patience and maintaining safety for vulnerable road users is always the top priority. By choosing not to overtake for now, you ensure you are following these safety rules and protecting both yourself and the cyclist. This approach will help you recognize and handle similar situations safely in the future.