This is not a limitation. The failover action is already properly handle to state it is not supported. But this is not due to a limitation into the ovn-octavia driver, but due to not needed this functionality at all (I would say this is an improvement). In amphora case you have a VM that needs to be recovered (failover) in certain ocassions. In ovn-octavia there is no VM for loadbalancing (with its pros and cons), and the flows are already distributed in all the nodes, so there is no need to failover/recover anything
This is not a limitation. The failover action is already properly handle to state it is not supported. But this is not due to a limitation into the ovn-octavia driver, but due to not needed this functionality at all (I would say this is an improvement). In amphora case you have a VM that needs to be recovered (failover) in certain ocassions. In ovn-octavia there is no VM for loadbalancing (with its pros and cons), and the flows are already distributed in all the nodes, so there is no need to failover/recover anything