SUMMARY If we receive notification and ignore it, it stays in the notification drawer. You might be working on your flow and might want to get the notification / be reminded about it in 5 minutes or some custom period. Reason for ignoring the notification is if if you're in the flow and want to reach a proper "pause" point to pay attention to it. What is the outlook for such a feature?
*** This bug has been marked as a duplicate of bug 445560 ***