Gotta catch them all!? ?
Looks like I will be adding another identity provider to my existing collection of IdPs (Authentik, KeyCloak, Synology SSO, Pocket ID, Zitadel and Kanidm) that can be used with vCenter Server and VMware Cloud Foundation (VCF) Identity Federation.
Authelia is another free and self-hosted IdP solution, which also supports Time-based one-time password (TOTP) out of the box and all configurations are managed in a couple of configuration files as there is no administrative web UI.