At my first appoinment my pdoc asked a lot. The first appoinment took longer as an half hour. The follow ups are shorter. I think 10-15 minutes. But that's also because I don't say much to him.
How often I see him depends on what we're doing. When I start a new medication or a higher dose, the next time I see him is about 6 weeks later. But the time between quiting a med and starting a new med is about 2-3 weeks. Since I haven't found a med that works, this has repeated now 4 times?
He asked me what my issues are, what therapies I've had, what medication I've tried in the past, what I expect from medication, if I had side effects from previous medication.
I can't remember a lot from my first appoinment. He might asked about your family situation, about school/work/friends, about what you do in your free time, how your day looks like.
At follow-ups he asks how I'm doing, if I've done anything fun/interesting in the past weeks. Then he asks about the medication, if I feel different, if I had side effects. He asks me about things I've mentioned before and if it has changed (sleep, appetite, energy, si thoughts).

But I've seen two different pdocs when I was a teenager. I don't remember a lot, but they didn't ask much.