Hole in inner cover is not a ventilation hole or condensation hole. It is for feeding.
In summer there is no condensation.
You need not a hole in inner cover, but I use it because is is a handy way to bees return to hive when I do operations.
ventilation hole under roof is harmfull because condensation happens onto rain cover.
I keep upper entrances. For example 6 boxes. First 3 has upper entrance and 3 supers not. I have seen that it keeps the hive too cold if entrances are open in upper half.