When I was using pfsense I had to create a load balance group and 2 failover groups. The load balance group had both lines equal priority and the failovers had one lower priority and vice versa.
Do I need to do something similar with openwrt? I have a functioning load balance setup but not sure what happens if a line goes down. Family is tee’d up that the nets been up and down all afternoon so not brave enough to pull one and test lol.