Customize Bad Request (when login with google)

[kiemlicz]

I've setup the login with google and disabled for the whole flow enrollment.
It works ok, the flow is extremely similar to default-authentication-flow

When the user login with Google with non-existing account in authentik the

Bad Request
Source is not configured for enrollment.

is displayed

However if I login with Authentik's User/Pass flow with non-existing user then

 Invalid password

is displayed

How to configure the flow (or something different?) so that the non-existing google login ends with less verbose message?
It doesn't have to be same to Invalid password, just denied would do.