Removing or Hiding Subtasks from Card View

Hello - I have users that create many subtasks per day, but these users do not need to see the subtasks accumulating on the Card View.

I've tried filtering rows based on the subtask checkbox, and that removes the subtasks from Grid View, but they remain in Card View.

Is there any way that a user can create a Subtask in the Card View but NOT show the accumulation of subtasks cluttering the Card View?