No, Private Space has not been confirmed as part of the new features in Nothing OS 3.0. The OS update introduces several enhancements, like revamped Quick Settings, new lock screen customization options, AI-driven app organization, improved charging assistance, and a refreshed Settings UI. However, there has been no mention of a Private Space feature similar to that on some other Android UIs, which enables secure file storage or app access.
Instead, Nothing OS 3.0 focuses on usability and customization with features like interactive dot animations, a new app library, and a specialized gallery app for faster photo access and enhanced photo management. Keep an eye on the official announcements or updates from Nothing for any future additions!