Thank you for contacting us.
I was unable to reproduce the reported behavior. I created a new role and allowed it only to edit content blocks and lists/list items. Would it be possible to check the value of the following parameter in your project:
Administration -> Settings -> Advanced -> Pages -> Sitemap filters ->Admin ->Parameters -> IsFrontendPageManagementFilteringEnabled if it is true, set it to false and restart the application and check again with that role.
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