Be aware that there are
two lists in the partners page. You could easily miss it since the other is behind a greyed-out tab called "Other partners" or something like it, which contains another 100 partners or so, in addition to the 200-300 main partners Verizon will share your data with by default, unless you opt-out (illegal under GDPR).
Verizon-owned sites that use this policy include Engadget, Techcrunch, Aol, and Yahoo.
Some more info here:
https://gdprhallofshame.com/5-techcrunch-engadget-and-oath-c...
Even though it's opt-out, at least they let you use their services when you deselect all of them - although I don't really trust a company such a Verizon to live up to its word and not actually track you, even if you deselect all of those partners.
However, companies like Google, Facebook, and Twitter seem to only give you the "option" to "take it or leave it": either agree to their terms or you'll lose access to the account (also illegal under GDPR). That's also why noyb is filing complaints against them (although they missed Twitter):
https://noyb.eu/