Can you just go to r/nursing and read the 100x stories of nurses saying "I'm actually not an ICU nurse but my floor has been converted to an ICU floor" or "We have 4 nurses for 30 covid patients and I want to scream"?
Maybe go to your local hospital and ask then among their own nursing social circles? They're the people who would have first-hand understanding of how full the ICUs are.
I'm not saying I believe everything I read on Reddit, but I know r/nursing is a longtime subreddit of mostly medical people and has a history of being as such for a long time. If I wanted to know what the actual medical field is dealing with day to day, I think a community with a history of being where healthcare people talk about what they're dealing with day to day is a pretty good bet.