RSSP: Are VBS Settings copied by environment refresh?

Are VBS customizations applied to RSSP screens supposed to be copied during a Fusion environment refresh?

We've heard that VBS instances operate independently from Fusion instances, and therefore VBS settings would not be copied when a Fusion instance is refreshed. Based on that assumption, we were planning to redeploy the VBS customizations to the refreshed Fusion environment. However, we found that the customizations were already reflected in the copied instance.

Could you clarify what the expected system behavior?