As far as I'm aware Sweden didn't ever close schools, restaurants, stores, etc.
I've look this up in because of translation it's hard to tell the exact policy. but most of those things have similar limitations to everything I'm seeing here.
They closed high schools and universities. They let young kids go back.
They had people voluntary social distance in banned groups over 50.
Using technology like cell phone tracking it appears that swedes interact at a rate around 30% of what they did before the pandemic.
Comparing this to something like South Dakota which is consistent with Sweden's population density, most of Sweden's success appears to be a lack of overall population density, the swedes natural propensity to isolate anyways, and the swedes group think on isolation where everybody went ahead and did it without ranting about their freedom and coughing at each other's face to prove how free they are.
Basically the policies that we're enacting right now and have done so since May are pretty close to what Sweden is doing and all we've done is exploded our cases.
Yes we had nearly every state locked down even if we didn't have a federal lockdown. But that was only a month, with various phases of undoing that ever since.
Either because of a population centers or Americans significantly different social habit, their model does not seem to be working here. (Although here is mostly my reference to Texas, as there's very heterogeneous response throughout the United States)