near 80 degree temperatures
Never heard of such a high temperate happening in Paris. Lower 40s is the maximum record, I assume.
my expectation is to have working A/C.
Your expectation! Did the hotel guarantee AC on 365 days a year?
and my room was a complete oven the entire time with little to no ventilation.
The absolute majority of hotels in Switzerland do not have any air conditioning. And it can get hot there in the summer time.
Things are different in Central Europe!