If your list feels cluttered because completed tasks are still showing, you may want to change how they’re displayed.
A “Show completed” toggle or
A filter labeled Status or Completed
Turn off the toggle or filter for completed items.
Your list will only show active/pending assignments.
Turn the completed view back on or visit a History or Completed tab.
See what you accomplished
Confirm that you did turn something in
Look back when studying for exams
But if you prefer a minimal view for day-to-day use, hiding completed tasks is the way to go.