I will try to find a source, but AFAIK (and checked with a doctor) only patients that need intubation currently get ICU treatment in Sweden.
[1] is the ICU register that gives some statistics, e.g. that median age is 60 years and 25% of patients don't have any risk factor.
[1] https://www.icuregswe.org/data--resultat/covid-19-i-svensk-i...