I guess we just have to hope that when IB claim price improvement of 0.0043 per share, that is indeed what we would have lost using payment-for-order-flow zero commission brokers.I contacted Etrade: they don't accept non-US residents since 2016.
IB lite if for US residents only.
It seems that this brokers war will have no positive impact for us.
Frustrating indeed!
However, I am not sure that is the case. I would have loved to test it, because it would have been easy to test.