Following the addition of registration questions (located under Event Setup > Registration Fields), here's where you can review the responses.
Click on Reporting > Attendees
Select Export
Check out the appropriate section in the full attendee CSV that you have downloaded
You can also filter and search attendee reports using custom registration questions. This means you can quickly segment your attendees based on specific responses, making it easier to understand your audience and tailor your event strategy accordingly.
Important Things to Note:
Only Completed Order attendees would have responded to these questions. You can check this helpful doc to learn more about what the different attendee statuses mean.
Additionally, if you have not made the necessary registration fields mandatory, your attendees could also complete the check-out without filling in all the details.