sure, I would say its mostly correct. You can solve Permissions and API Gateway also differently - for example many use OAuth2 claims and scopes for permissions. I personally think that isn't good practice - like "first-party auth" I think its outside of the scope that OAuth2 was built for originally - but it works and many are used to building authz that way. You could also use the identity metadata on Kratos for permissions - this works well for simple RBAC usecases but if you want "large scale" and "finegrained" something like Ory Keto is probably the more reasonable choice.

Feel free to message me on the Ory Community Slack if you want to discuss further: https://slack.ory.com/