We have Azure DevOps on-premise server 2020.1 RTW, we wanted to add users/groups with limited access to Wiki pages only. We added the group to the project and added the user to the group and updated all the permissions from Project Security to: Deny except for: View project-level information permission (set to: Allow). Permissions have also been updated from Collection Security settings. The user currently can view Wiki pages but he can also add/delete Pipeline folders. Any idea on how can we revoke the folder deletion permission? Note: I followed the below articles but the issue still not resolved:
How to restrict access to Pipelines in Azure DevOps
Update: Included Image for access control summary for Pipeline level permissions: