Currently, the "Delete Items" permission ("Only if created") applies to all item types at once: tasks, lists, checklists, and checklist items. There is no way to configure it per item type.
This creates a problem: if we restrict members to only delete items they created (to protect tasks and lists), they also lose the ability to delete checklist items inside checklists created by other users. Checklists are collaborative by nature, multiple people add and remove items as work progresses. Blocking deletion of individual checklist items breaks this workflow.
Proposal: add separate toggles within the "Delete Items" permission for different item types, for example:
  • Tasks
  • Spaces / Lists / Folders
  • Views
  • Checklists
  • Checklist items
  • Attachments
This would allow admins to keep strict control over structural elements (spaces, folders, tasks, lists) while giving team members the flexibility to manage day-to-day collaborative items like checklist entries.