ADFC authentication require CCU

Can you clarify? Do you mean ADFS?

We wants to replace ADFS proxy server with F5. F5 APM work like ADFS proxy as per "; article configuration. So I need to confirm that, user authenticating on F5 login page for ADFS authentication will utilize CCU or Access session. I need this detail for sizing CCU users license.

Look at this article

https://support.f5.com/csp/article/K13267

CCU licenses are used when secure connectivity profile is required to enable a feature...

Adfs proxy feature Requires only a LTM-APM virtual server, so it uses only access licenses.