The impact was nuanced, and depended on the specific policies in place.

Some businesses had business interruption insurance which paid out. Many policies exclude highly correlated events such as pandemics.

And then think about specific events which were cancelled, which may have bought policies protecting them if cancelled.

And of course life insurance and health care would have been affected.

SwissRe often produces public reports in the space if of interest:

https://www.swissre.com/risk-knowledge/building-societal-res...