Sorry - meetings all day and you need to use proper industry vocabulary and the habit just... sticks...
Acuity = amount of care a patient needs. High acuity = requires lots of care. Patients in the ICU are monitored like crazy and the amount of documentation is substantial. When we go to "disaster documentation" the amount of documentation required is significantly reduced, which frees staff up to actually take care of the patients instead of spending 2/3 of their work day hovering over a computer and entering all kinds of assessments. The ICU in my hospital is at about 90% capacity right now (only 20 beds - it ain't big), and staffing levels are very difficult to maintain when there isn't a pandemic on.
Now that we're 9 months into the pandemic we're a lot better at caring for patients - we don't admit them as quickly as we did in April and we don't jump to intubation as quickly either (I'll leave the actual healthcare professionals to explain that, all I do is determine workflows and match them to IT infrastructure). As such, we have fewer admitted patients per infection, but those that are admitted are, on balance, probably sicker than they were in April. If you don't need to be in the hospital, most hospitals try to keep you out. You can see this in the CDC numbers - case fatality rate has been pretty steady since June or so, and is much reduced from early on.
My parent company (second biggest employer in MA) is also rapidly ramping up our telemedicine infrastructure in anticipation of future outpatient closures. It's my understanding that they do not intend to close clinics again, but are preparing in case it's necessary.