Does your data stay local by doing this?
When you say "upload some of the vectorized data" do you mean in a numerical embedding form or that it will embed the original text from original similar-seeming notes directly into the prompt? I've only ever done the latter, is there a way to build denser prompts instead? I can't find examples on Google.
Those documents are then injected into your prompt and sent to some kind of LLM completion system such as GPT.
So yes, you will be sending chunks of your actual notes over the wire.