I would like to start the discussion regarding this and say that this would be the end of my continued support for Trakt. I DO NOT wish to be forced upon 3rd party SSO logins or does this only mean username login is going away but not email address login?
You would need to sign in using email address.
You could make the warning on the home page a little clearer, since it does read like the two options are APPLE or GOOGLE.