Supposedly the Vaccinated will be protected enough to not be in ICU. We will see.
The UK, USA, all of Europe and Israel have plenty of data over millions of cases that Vaccinations reduce severity of symptoms by up to 97% once fully administered. Some gain full immunity, while others will suffer no more than mild flu like symptoms, a small proportion of the vulnerable can get severe symptoms and even die, that is normal for any vaccine. Covid Vaccines have shown to be very effective as well as very safe compared to almost any other medicine, with very low severe side effects compared to even over the counter drugs like Aspirin or Panadol, considering the massive amount of doses administered so far. And don't bring up long term effects, if you take Panadol or Aspirin long term you will need to be regularly tested for kidney failure, the same with many other common drugs used to treat various common ailments. Why regular blood tests are required when on these medications long term.
You can still end up in ICU for a number of other reasons. That has always been the issue that covid patients chew up hospital resources that are needed for other things. That's why elective surgeries have been delayed to free up beds and staff.
A big Friday night on a long weekend can swamp a cities ICU capability, add 100 covid patients and then what.