How much pain should I expect from orthognathic surgery?

I searched for "orthognathic orthodontic pain" and found that orthodontic pain and post-surgery discomfort often go hand in hand.

I'm worried about functional issues, but I'm most concerned about the recovery process.

Are the first few days usually the hardest for orthognathic orthodontic pain?

Should I ask detailed questions about the treatment duration and post-surgery care during the consultation?

For those who have experienced orthognathic orthodontic pain, how long did it take you to return to your daily life?