Google Analytics shows a huge variation between Users and New Users. To the point that the number of Users appears totally wrong.
The image below shows users for the period Feb 11, 2012 to Mar 10, 2022. In the Users column there are only 10, and they are all in Australia. However, in New Users there are 5,161 and from 64 different countries (not all countries shown in the image).
So what is happening?