You are right. I think they should make it more clear.

In the FakeSpot privacy notice, Google Analytics, Social Media Platforms, Contact Info, and Identifiers are not collected by Firefox, among others. So it's fair to say the data collected is not linked to the user.

The browser.shopping.experience2023.ads.enabled flag is intriguing. So I took a look. It turns out that the recommendation is only based on the current page you request the review analysis.

In general, I believe that it is primarily ambiguous legal documents rather than a genuine invasion of privacy.

In OP's screenshot, you are only going to agree to Mozilla's privacy policy and FakeSpot's TOS. So the FakeSpot's privacy policy is not involved.