In Studio Manager, questionnaires are designed to be privately filled out by a specific client. For this reason, posting a link to a questionnaire publicly is not recommended — only one person would be able to complete it.
If you want to share a public form to collect information from multiple people (e.g. prospective clients visiting your photography website), a contact form is better suited for this workflow. Contact forms are designed to be shared publicly on social media and websites, so they can be completed by an unlimited amount of people.
Learn more about contact forms here: Capturing Leads and Contacts with Contact Forms