Whether or not this is a privacy problem for any given user is a question for that user to consider, but there’s no question that ads are “relevant to” privacy.
I’m not quite sure what you’re demonstrating with the ungoogled chromium link. I suggested using a chromium fork, like ungoogled or cromite that have these patches and build switches to improve privacy.
Mozilla discusses the “signals” they rely on for ads here:
https://support.mozilla.org/en-US/kb/respectful-ads-mozilla#w_how-we-use-data-in-mozilla-ads
spoiler: there is monitoring involved
Whether or not this is a privacy problem for any given user is a question for that user to consider, but there’s no question that ads are “relevant to” privacy.
I’m not quite sure what you’re demonstrating with the ungoogled chromium link. I suggested using a chromium fork, like ungoogled or cromite that have these patches and build switches to improve privacy.