This is changing somewhat though. Several of the larger cities in Norway are struggling with poor air quality during winter, so studded tires have either been banned or require you to pay a tax in order to use them. [1]
This doesn't apply everywhere though, and people are require to use common sense and use the tires (and chains) that are best for where they live.
[1] - https://www.stavanger.kommune.no/en/waste-and-environment/mi...