DRF SocialLoginVeiw Custom? or Create New View?

Question

class KAKAOLogin(SocialLoginView):

    adapter_class = KakaoOAuth2Adapter
    client_class = OAuth2Client
    serializer_class = SocialLoginSerializer

    def get_serializer(self, *args, **kwargs):
        serializer_class = self.get_serializer_class()
        kwargs['context'] = self.get_serializer_context()
        return serializer_class(*args, **kwargs)

now i using Django allauth SocialLoginView.

when Signin my app, i used Username (not email). but when i using SocialLoginView, enter username as "real name" or "user" to DB.

in this case, there is a way to modify the SocialLoginView described above and a way to create a new View.

Which is the better way? and if the way to fix the SocialLoginView is correct, which part should i fix it?