Does "Maintain and improve our services" mean "any private web page you ask Gemini about will be dumped into our training data"?
I've still not seen a solid answer to that from any of the AI labs that use language of that nature.
Safe to assume they will use your data for pretty much anything they can, including model training.
'When you use the Gemini in Chrome feature, Gemini collects and processes page content and the URL from the browser tab you’re viewing by default. Some of the page content Gemini uses might not be visible to you."
I think they're being reasonably explicit about what they're doing.
Note: I'm in the EU so not sure if this is what's shown everywhere else.
I'd love to get a confident answer to that question.