Entra ID Governance is a separate/add-on SKU, it does NOT give you access to any of the P1/P2 functionalities such as conditional access policies. Refer to the official documentation for more details: https://learn.microsoft.com/en-us/entra/fundamentals/licensing#microsoft-entra-conditional-access
https://learn.microsoft.com/en-us/entra/id-governance/licensing-fundamentals#types-of-licenses