But from my job search there and anecdotes from mates and the internet opinions, Swiss companies have a highly mandatory in-office culture, plus the cross-border commuters from neighboring countries who drive in and out every day to benefit both from high Swiss wages and also from the cheaper living abroad. Well then no shit Sherlock your air quality goes down the shitter.
So I doubt that the public transportation not being free is what caused the higher pollution in the first place, since people drive by car not because public transportation costs too much money, but because on their commute route, it saves a lot of time despite the extra cost of car ownership (you can make more money but you can't make more time).
To me, it just feels like another way for politicians washing their hands of the elephant in the room: the forced need to commute every day for jobs that don't need it. It seems like the lessons from the pandemic have been quickly forgotten since early to mid 2020 when everyone was locked in their homes had the best air quality we ever experienced, but somehow politicians can't put this 2 and 2 together and go fight made up strawmen instand.
They are the only public transportation available.