Norway is already the country where it's quite normal to drive to Sweden to buy tobacco, alcohol and yes meat, and other stuff that's cheaper across the borders. Restaurants source cheaper meat illegally this way etc.

Unfortunately, Sweden is in the EU and Norway is not so there's quite a lot of customs rules on that border.

And I should point out that this is a day trip: It takes me less than 90 minutes to get to Sweden. There are busses and trains that go as well. There might be a lot of customs rules on the border, but I've never seen them actually stop folks either.

Right, the border is chill (except for the crazy covid times, hope that's behind us). Mostly easy and fair rules for regular people. But the point is, if your car is full of meat and it's for a restaurant, not personal consumption, it's definitely illegal.

I lived in Tromsø and drove to Sweden and Finland a fair few times... there is zero customs enforcement. At least for cars, for lorries they're probably tracked in some other way.