Not saying anything about the current storm, but a storm as strong as the Carrington Event[1] would make modern day life on Earth pretty unpleasant. Some of the potential impacts are documented in Severe Space Weather Events: Understanding Societal and Economic Impacts [2]

[1] https://en.wikipedia.org/wiki/Carrington_Event [2] https://nap.nationalacademies.org/catalog/12507/severe-space...

My understanding is bigger than normal, but a lot smaller than storms that have caused grid issues.

This is the first G4 watch since 2005: https://www.swpc.noaa.gov/news/severe-geomagnetic-storm-stil...