Thank you for asking this question on the **Microsoft Q&A Platform. **
I understand that you want to use Azure Site Recovery to replicate your servers from GCP.
I don't think that there is any native way to do this, the best path I believe is to deal with the GCP infrastructure as an on-premises environment.
You can Set up disaster recovery to Azure for on-premises physical servers in order to achieve your objective.
Let me know how it is going.
Hope this helps,
Carlos Solís Salazar
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