> Where V3+UBL still makes the calls it just doesn't display the results. So while you might not see the ads, the ads see you.

That's not what the docs say [1]:

  A single rule does one of the following:

  - Block a network request.
  - Upgrade the schema (http to https).
  - Prevent a request from getting blocked by negating any matching blocked rules.
  - Redirect a network request.
  - Modify request or response headers.

Does "block" not mean block? Can you provide a source? Or am I looking at the wrong docs? I'm searching online and can't find anything that says the request is still sent.

[1] https://developer.chrome.com/docs/extensions/reference/api/d...