Hi Gregg,
Thank you for the kind words and joining our premium membership.

Here is the code that you can put in your bp-custom.php to skip the group

/**
 * Skip a group from the group notifications.
 *
 * @param bool $skip true to skip notification.
 * @param BP_Activity_Activity $activity current activity instance.
 *
 * @return bool true to skip.
 */
function buddydev_skip_group_from_notification( $skip, $activity ) {

	$group_id = $activity->item_id;
	//change the group id
	if ( $group_id == 3 ) { //Please change '3' with your group id
		$skip = true; //skip
	}

	return $skip;
}
add_filter( 'bp_local_group_notifier_skip_notification', 'buddydev_skip_group_from_notification', 10, 2 );

Please change the group id with yours.

Let me know if it works for you or not?

Thank you
Brajesh

Thank you for the appreciation Gregg.

I am glad I was able to help 🙂