sabenaboy
What Fly3 has suggested is taught by most instructors. However every airline
has its own height during approach they suggest to zero rudder trim. You feel zeroing rudder trim during flare will cause yaw. It doesn't cause that much because the thrust which is causing the yaw is brought to idle. On the other hand holding on to the trim during flare (not zeroing) as you do will cause yaw to the other side and you will have to counter that during landing roll.This can be aggravated by Xwind from the that side. I have not seen any document suggesting your method. That does not mean you cannot land without zeroing rudder. You can fly the whole approach manually without triming holding the rudder but in case of incapacitation the PNF will have a surprise.