Ask HN: What have we learned about Covid-19 over the past few months?

What have been the major things we thought were true about COVID-19 and fighting the pandemic that we now see are false? Where have we been most wrong?

Relative to what news outlets were most commonly saying a few months ago, in what ways is it worse (at an individual or societal level) than we were told, and in what ways is it less bad than we were told?

What's the best personal risk reduction strategy going forward with everything we now know?

There were various articles talking about the possibility of long term damage for covid survivors. It hasn't been years so we don't know for sure, but with the few additional months of data we have, does serious long term damage for survivors look likely or not?