Overall I must say, Joplin as a very well note organiser isnt that good a task-manager.
Ad hoc lists, with checkboxes are okayish, but real taskmanagement is another league.
Applies to all note-systems, specially for recurring tasks, because 'a note with tasks' differs from 'a task with a note'.
Personally I really would like Joplin to be a good taskmanager, because of philosophy / commuinty etc.
But I accept it isnt, for now. Hoping plugins will solve this tho.