When viewing a public share link for a prototype, it’s possible to request access to Inspect mode. When someone places a request, an email is sent to the prototype owner—or, on an Enterprise account, the Enterprise owner—asking for approval.
To grant access, click the Send invite link in the email and follow the prompts. An invite will be sent to the requester, and they will be able to inspect the prototype.
To learn more about requesting access to Inspect, check out this article: How do I give developers access to Inspect for my prototypes?