I can't see how the wages have anything to do with the points in the parent comment but you're never going to get US wages in Sweden as long as the unions are involved
What stops Spotify from paying USA wages in Stocholm or other cities in Europe that offer good quality of living and thus appealing to software developers? Software developer unions are going to say NO? Do such unions exist? Can they control software devs?
Sweden has collective agreements where workplace conditions including pay are decided between the unions and the employers rather than the government interfering in the process. Yes even software devs are covered under this.
Why would they want to move people around the world, deal with the unions who will force them to raise the floor of the local salaries etc when they can just hire the best talent in the US?