Your perception of a country doesn't make a scientific evidence on why Norway of Finland could be taken as reference point to assess Sweden strategy regarding Covid.
Saying Covid response is the only thing that could possibly explain the observed differences between Sweden and (let say) Norway is simply wrong.
I do suspect Sweden would have had less fatality had they implemented a lockdown. Would it then be comparable to Norway? I wouldn't bet may life on it. France has almost twice as many covid death as Germany even though they implemented a much stricter lockdown.
It seems some people hate Sweden for choosing their way to deal with the pandemics. Could have they done better otherwise? maybe, but overall, no cataclysm happened there, they did ok in terms of fatality compared to rest of Europe, and much better for the other metrics, as stated in the article.
It's very hard to correlate policies to outcomes.
Nobody has claimed that it is, and in fact in this very thread you've seen it correctly noted that Sweden's approach to old age homes was responsible for a significant part of the fatalities -- although here too there's a lot of debate about whether it's the percentage of % in age homes (a bit higher in Sweden), the Swedish tendency to have larger homes, or the Swedish COVID policy decision to treat people at the homes instead of hospitalizing them.
But, again, if you have alternative hypotheses or factors that you think differ greatly between the countries, let's hear them. Because as a native of the region, I'd struggle to find many, at least when it comes to factors a virus would care about (as opposed to, say, preferring sweeter jam with meatballs).
Maybe this explains the difference during the pandemic - Sweden had more old people.
[0] https://www.news-medical.net/news/20201116/Study-compares-de...