SharePoint permissions
There are three main categories of permissions in SharePoint
Site Owners
Is the highest privilege you can get on a site level. Manage site content, manage site features, delete a site. Site owners have access to everything on a site – no content can be hidden from Site Owners (even if you set up folder-level permissions). Site Owners cannot manage hub navigation.
Site Members
Manage site content: Add content, Edit content, Delete content, Create document libraries and lists, Create or edit metadata on libraries and lists, Add Apps. Site Members cannot: delete a site, manage site features, change site permissions for instance.
Site Visitors
Site visitors have read-only access to the site. If users are part of this group, the only thing they can do on a site is read and download. This applies to documents, pages, events, news, links – virtually any content you have. Visitors can also make comments to a SharePoint pages.
