Sweden is definitely doing well at the moment. There are only 2 official deaths a day and there is no excess mortality. Though the number of excess mortality is not very promising this week. But this number is provisional and could be high because of the heat wave in Europe. Whatever, I would not call it herd Immunity. The number of infections is rising again (like in all other European countries). At the end of July there were 200 infections a day, now there are 300. Furthermore Sweden has the 8th highest number of (detected) infections per capita.