How to Grant the Guest User Access to Specific Categories
The Guest user can only view and edit categories that you have given them access to. You can select categories visible to Guest users in just two steps.
Step 1. Team settings
Click your team's name to toggle the dropdown menu. Select Team settings.
Step 2. Select categories
On the Team members page, click the highlighted category link under User Type.
Select the categories you want to share with the Guest user and click Save.
Once the person logs in and creates their account, they'll be able to see and edit pages in those categories.