Google is changing the deal for these people, though, and telling them they need to start paying or they'll lose their account.
Google notes that customers can use Google Takeout to export some data, but if you don't want to pay, rebuilding an account under a consumer Google account is a lot of work. These were mostly fully functional Google accounts, and there's no way to export things like content purchases for books, movies, music, and apps. You'll also probably lose your Google Voice number. If you used your G Suite account like this, you don't have many choices other than to start paying.
Don't be evil.