So my understanding is that they are the second strongest, but still at around 20% the other German parties formed a coalition that froze Afd out of power. So they are still a threat in future elections, but they have limited impact on policy for now.

Is that correct or have I got the wrong idea?

Even if you don’t buy into this logic, you still have to do it in quite a few places because the security auditors have a line in their checklist about being able to extract any internal information from error pages