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Google will use Gemini to detect scams during calls | TechCrunch
(techcrunch.com)
This is a most excellent place for technology news and articles.
I dunno. I doubt it is. But I also doubt there isn't something they are getting back.
Maybe not personal information but I'd imagine there will be data on what keywords it flagged on and whether the user hung up or carried on with the call etc. They wouldn't be able to fix or improve the service without getting information back.