MAC allow list: this list is only for this port, only the mac addresses you add manually can connect this port. You could set it to open to see the new mac, but you dont need to, you can just add the mac(if you know the mac)
Sticky MAC allow list: this list is only for this port. Its a empty list that learns the mac from the client, and then add this to the list. So if you set the limit to 1 only the first client would be added to the list