Yes I believe that’s the case. Poland are currently the highest ranked team not in a qualifying place so get the nations league D team which is Estonia but if they can turn it around we are then the next highest ranked team so would get Estonia instead.
I also think the highest ranked team get a home semi final and final so not sure that means we would be away in any final if Poland are in it too, there are 3 pathways so maybe it doesn’t make a difference- it is very complicated!