> We think that Auth0, Firebase etc are great services but auth is complex.
Yep that tends to happen when you are supporting SSO and certifications like OpenID Connect. Using one SSO portal to handle mobile, spa, web apps and code auth with evolving techniques like PCRE. That's probably why some customisations are not available too because it breaks the standard. You will just end up with the same models once you've implemented all the same features. Okta, Auth0 and others are all really similar because of the standards behind them not because they thrive to be complex.
Yep that tends to happen when you are supporting SSO and certifications like OpenID Connect. Using one SSO portal to handle mobile, spa, web apps and code auth with evolving techniques like PCRE. That's probably why some customisations are not available too because it breaks the standard. You will just end up with the same models once you've implemented all the same features. Okta, Auth0 and others are all really similar because of the standards behind them not because they thrive to be complex.