Thanks very much! I think before I looked at docs for Google AI Studio, but also for Google Workspace, and both made no guarantees.
From the linked document, so save someone else a click:
> The terms in this "Paid Services" section apply solely to your use of paid Services ("Paid Services"), as opposed to any Services that are offered free of charge like direct interactions with Google AI Studio or unpaid quota in Gemini API ("Unpaid Services").
Enterprise features like Gemini for Workspace (generative AI features in the office suite), Gemini for Google Cloud (generative AI features in GCP), Gemini Code Assist, Gemini in BigQuery/SecOps/etc do not use data for training.
From the linked document, so save someone else a click: