There doesn't seem to be a way to configure the Slack notification settings in a way where I'm only notified when a task is created and assigned to me without being notified when any new task is created. We don't want to limit the notifications to only tasks we're assigned to in case we're mentioned in tasks that aren't assigned to us.

I've tested a few combinations of settings and can't seem to have BOTH notifications for mentions on all tasks and notifications only for new tasks created/assigned to you.