The middle option most hosts end up using
Plenty of sessions are neither fully public nor strictly named. The practical version is a closed page opened for a window: password out to the list you trust, an exact seat count that matches the room, and the link left shareable so a colleague can pass it on โ they will still need the password. Marta Keller, who runs quarterly sessions for a client group, keeps it simpler than that: closed page, one seat cap slightly under the room, and no broadcast beyond her own list.
Whatever you pick, the follow-up reads the same afterwards. Both setups give you a list with statuses you can export, both send reminders by email to registered people, and both let you send the replay and your slides to the segment that actually showed up.