No they didn’t Admit that.
I also see a lot of misinformation circulating that herd immunity has ever been a part of the Swedish strategy. The Swedish strategy has always been about flattening the the curve.
Well, they tepidly did.

Sweden's COVID-19 response chief admits strategy to keep country open has 'potential for improvement'
Sweden's controversial coronavirus strategy to achieve 'herd immunity' has led to one of the highest per capita COVID-19 death rates in the world.
www.usatoday.com
"Asked if the country’s high death toll has made him reconsider his unique approach to the pandemic, Tegnell told Swedish radio, “Yes, absolutely.'"