0.6% die, and some rather rubbery number end up with symptoms lasting from 6 weeks, or 6 months, or something. The rubbery number is sometimes quoted as 1/3 of people who enter hospital, which if 5% enter hospital would mean about 2% of the population die or are so incapacitated they can't work for some number of months. By comparison, just about everybody hospitalised for flu is fully recovered in 2 weeks. https://www.medicalnewstoday.com/articles/long-covid

2% is getting up there. Even if 75% avoid that fate by getting vaccinated, incapacitating 2% of the remainder will be enough to send us into a deep recession.