You know what - that's a good idea. The general group of task tracking methods is what works best for me already, and this one makes sense.

Still miss the time I had a mind map software for my tasks which also had a "progress-ready" rather than just a ready icon. It was a circle filling in quarters, until it was full and became a checkmark. I like my tasks structured hierarchically, with the option to always break down any task or subtask further, and that was the best of both worlds.

With Kanban and tickets, my only worry is that creating subtasks in something like Jira does not display as nicely as it does in a mind map.