That being said, not all of 20% needs ICU, and not all people will be infected at the same time (specially now since people are panicking). OTOH, if medical system will be DDOS'd, then also other people will die that need medical attention (so mortality for other illnesses will go up). So in theory it could be as bad as 20% if we would ignore the virus, let it spread to everyone as fast as possible and don't do anything. But that is not what is happening.
And please refrain from using words like "suspiciously" which tend to transport negative messages. There is nothing suspicious about these numbers what so ever.
When you're used to dealing with numbers, numbers that don't match up to expectations are "suspicious", in that they suggest some underlying issue, though whether in data or ground truth can be hard to say.
According to this article, Germany has 4x as many ICU beds per capita as the UK (the most in Europe,) and the US has upward of 10x as many. https://www.theguardian.com/commentisfree/2020/mar/03/icu-do...
I suspect that Italy may have had undetected community transmission longer than Germany, that German testing is more comprehensive, and that we're seeing more case, detected earlier, and less advanced than Italy's, typically. In another week or two the gaps in experience may narrow.
Germany's recovereds are only 18 (of 1,224 cases), so the vast majority of cases are still ongoing. At a rate comparable to Italy's, we'd be looking at 88 recoveries.
For much of this epidemic, different countries aren't so much doing better or worse so much as being earlier or later in the process. Italy seems 1-2 weeks ahead of Germany.
Corollary: look for nationwide quarantine in Germany in 7-14 days.
Not to excuse but explain: but being recently deprived of a hardware keyboard and having to use onscreen soft keyboards is a major handicap to clear writing. It's a 50% cut in intelligence.