I primarily work in card view, running the project via Scrum methodology. When I move level 1 cards into the 'done' column, it doesnt move the level 2 subtasks into 'done' as well. This is an expected outcome for Smartsheets, but I'd argue that when working in card view, you would only move parent card into 'done' when all the subtasks are complete too. So in cases where you have a few subtasks to update which would complete the overall card, just moving the parent card into the done column should also update the level 2 subtasks into done too.