The problem
Nobody can explain why this user has access to a SharePoint folder
A user has access to a SharePoint folder but the source is unclear. Admins must trace inherited permissions, unique permissions, groups, guests, and sharing links before making a safe change.
This is a workplace problem tracked in SharePoint & Teams Admins. Below is the solution path currently available for it.
The solution path · 1 linked resources
Public resources can be viewed by anyone. Member resources open inside the Space after you join or sign in.