

I am not sure if it is still applicable, but with the 3-2-1 rule, that should work good enough. 3 copies of your data on two different medium with one off-site backup.
So the data with it’s local backup that is copied to an off site backup. Which is probably your case (I assume that your offsite backup is a copy of your local backup).
Cashing out 1.6billion at any age is generational wealth.