In my experience building a couple ChatGPT apps and, through colleagues, working with OpenAI folks, I'm not sure they should be building anything in their current state. Seems quite disorganized over there.

This. Also building a MCP app for ChatGPT right now, and man, things break here and there without notice. Seems very unorganized over all there. They should glue a Beta or Alpha badge on it.

If they had OpenAI Slack, maybe it would get better organized.

FWIW, they do: https://openai.enterprise.slack.com/

And as per the article it is heavily used and customised