While I get my organization's IT department involved, I do wonder why this is built in a way that requires more work for people already paying google money than a free user.
I'd echo that having to get the IT section involved to create a google cloud project is not great UX when I have access to NotebookLM Pro and Gemini for Workplace already.
Also this doco says GOOGLE_CLOUD_PROJECT_ID but the actual tool wants GOOGLE_CLOUD_PROJECT