Please give us the option for completed subtasks to be hidden, especially on phone apps, but also on the web interface.
It is frustrating to an absurd degree that the completed tasks linger “faded out” with no way to make this disappear completely.
It’s such total waste for us to have to scroll through all those completed subtasks, or having to open the subtask to delete it (and, accidentally deleting the main task in the process, which is also extremely frustrating).
Basically, this makes the subtasks nearly unusable if you have more than just a few subtasks in it. It is exceptionally frustrating.