What was wrong above? Did not Italy have a longer lockdown for example?

because you are cherry picking a single example.

https://en.wikipedia.org/wiki/Cherry_picking

read up on why cherry picking is problematic.

If you don't want to do that, note that I can just as easily cherry pick New Zealand as an example. they had a harsh lockdown and did great, much better than sweden. orders of magnitude better. I don't do that because cherry picking is bullshit.

as to your new source, quote the part that supports

Norway, Finland and Denmark had relativly mild lockdowns and the difference between their and Swedens strategy are not that big.

because that is your claim.

Your source doesn't actually have information on Norway, so that is gong to be a problem for you and Finland had a lockdown and banned groups of more than 2 people while denmark banned groups of more than 10, but it's your claim and your source.