"Iceland embraced a shorter work week. Here's how it turned out"
https://edition.cnn.com/2024/10/25/business/iceland-shorter-working-week-economy/index.html
> Following the trials, Icelandic trade unions negotiated reductions in working hours for tens of thousands of their members across the country.
Iceland has generally been run by right wing parties for the past forty years. We have this and a welfare state only because 90% of the workforce is unionised. "Negotiations" in this context include the threat of a general strike shutting everything down.