Google probably will not outright sell your data but they will likely data mine everything that can be derived from it and present you appropriate ads (for which other companies pay Google). That is their whole business model after all.
Google Docs, Sheets, & Slides doesn’t use your content for advertising
We don’t use information in apps where you primarily store personal content—including Google Docs, Sheets, & Slides—for advertising purposes, period.
Of course there might be some loopholes in that, e.g. what if you don’t store personal content in these app but e.g. business data. Also they say they are not using it for “advertising purposes” but that leaves room for other uses, too.
Yeah, and besides the loopholes that could be used, they certainly would not just sell the data outright, their business model is having data to target ads with – selling it outright would mean they lose the one thing that gets people to buy ads with them
Would it be worth it to create a separate Google account to use the Tiller service? Will that limit the “hit” my personal account takes? Or is that too much trouble because it is what it is at this point?