Migration from on-premise Vault to HCP (and back)


we are currently evaluating Vault as our future secret management system and have a question regarding the possibilities to move from on-premise Vault to HCP and back.
Is it somehow possible?
We are currently not sure if we will deploy Vault on our own or if we will use HCP so we want to know if this is decision which can be changed “easily” in the future.
I’ve checked operator migrate - Command | Vault by HashiCorp but from the documentation it is not obvious that it could be used to do this.

Thanks in advance.