Me and the greenhouse is in Sweden but the south part that has quite mild climate with “normally” only few weeks below zero so quite humid.
Portugal has more or less not below zero a full day so very humid but Hungary has quite continental climate with both cold and snow so garden under quite different conditions. Coastal, continental and Mediterranean:) so try to grow the right stuff at the right place but as I am mostly in Sweden I want most things there.
The fungus and mould is it not a result of high humidity?