It might be stored locally, then shared with a call home through telemetry after which Microsoft then sells it as “anonymized” data, which is then again recombined with other sets by the buyer to recreate your profile.
I read that they can combine 3 anonymized datasets to fairly accurately identify a person.







I don’t even use it that much. Sometimes as a last resort when searching yields no answers, but then usually it just answers something not quite right so… wouldn’t miss it.