Okta to secure Azure Blob Storage via OAuth2

While it seems to be possible to use Azure AD as an external IDP for Okta, is the reverse also possible?

We would like to setup Azure Blob Storage access where authentication and authorization is done through Okta, through OAuth2 using the Client Credentials Flow, so both parties are server-side client applications without end users.
Would this be achievable through Azure AD Direct Federation by setting up Okta as an IDP?

If not are there any other ways to achieve that? Our client already uses Okta on-premise.