Every deployment follows the same pattern. Pages are deployed to preview first, so you can check them and confirm integration is working, without affecting anything visitors currently see. Once you’re happy, the same pages are deployed to production, which is what visitors actually receive. Any future page changes follow this same preview-then-production path.
You always get a safe way to check a change before it goes live. Preview never affects your existing site, so there’s no risk in reviewing before you deploy to production.