Of course they’re at the absolute minimum. Hospitals don’t increase absolute capacity in order for them to employ people to sit around.
Yep it is staffing that costs the big $$ so hospitals run at 70%-85% census routinely. COVID-19 has drained the "traveller nurse" pool down to nothing. So it isn't a matter of "how many physical beds do they they have", but more a matter of "how many staffed isolation-infectious beds/ICU beds can they operate".