NYC Gopher fan- GoldenHas donated $ to the upkeep of GPL
Solution was continuous running fan installed in bathroom. Not cheap, but worked immediately. Has condensation sensor so it just works when needed
And after I write this, I notice I have actual frost build up on windows today. First day since installation it’s happened. Not sure if these cold temps are cause or not- Nest says humidity is down to 34% so that could be why fan isn’t running