Are Azure Cosmos backups charged per region?

Author: mluker

Originally Sourced from:

Does Azure charge you per region when performing periodical backups?

Based on their calculator it seems that's what they do. I have a single write region and a single read region and it looks like I will be charged for both regions when I enable backups.

Also, how does the "backup restore redundancy" (GRS, ZRS, and LRS) work into pricing for backups? It's an option in the Azure Portal but their calculator does not account for it.