> If a region has sufficient hospital capacity that it would not be overwhelmed by the increase in COVID cases among the unvaccinated go ahead and lift most restrictions.

This is basically the reasoning used in Ireland; the hospitals weren't overwhelmed as Omicron peaked in the first week or so of January, so overnight we went from really quite restricted to all restrictions except mask requirements gone. Over 95% of Irish adults are vaccinated, so this isn't a trick that will work everywhere, but... for now it seems to be going okay.