@chriscas I am a student within a group. I noticed that I receive no notification whenever there is a group announcement, nor with group discussion posts/replies.
Your reply stated, "Notifications for group announcements would be the same setting for each user as a course announcements." I see notifications from my course, so does this mean there should be notifications for the group somewhere? Granted, the course notifications are shown in the Dashboard view, and I can't view my group there; therefore, no notification.
Do you know if there's any other way that a student in a group can receive such notifications?