Wikipedia has a graph of actual resignation rates for the US: https://en.wikipedia.org/wiki/Great_Resignation

They are... slightly higher than normal. "Great" is clearly an exaggeration.

I agree with gentleman11. The news often clings on to and exaggerates ideas that sound interesting and reasonable but aren't actually happening to any notable degree.

Additionally if you resign and are not looking for work you don’t count as unemployed. Unemployment rates are calculated only for people actively looking for employment.