Im also curious about the Auth0 authentication option. Currently there is no mentioned of it on the API authentication docs: Configure API authentication | Retool Docs
It has fields for: Auth0 Domain, Client ID, and Client Secret but it's not clear which client it's expecting I use. Is this for an application, machine-to-machine, or Auth0 Management API? I don't see how I can use it to authenticate as a user using the usual Auth0 UI flow.
Why are you suggesting users use OAuth2.0 rather than the Auth0? Will it be deprecated soon?