This is my experience as well. I answer many such calls from devs as part of my work.

I can usually tell at the end of a call which group they belong to. I've been wrong a few times too.

As long as they don't waste my time I'm fine with everyone, some people just have other priorities in life.

One thing I'd say is in my experience there are many competent and capable people in every group, but non-competent ones are extremely rare in the first group.