I agree, Google is definitely the champion of respecting your privacy. Will definitely not train their model on your data if you pay them. I mean you should definitely just film yourself and give them everything, access to your files, phone records, even bank accounts. Just make sure to pay them those measly $200 and absolutely they will not share that data with anybody.
You're thinking of Facebook. A lot of companies run on Gmail and Google Docs (easy to verify with `dig MX [bigco].com`), and they would not if Google shared that data with anybody.