Movement for an Open Web (MOW) has lodged a complaint with the UK's Competition and Markets Authority against the W3C's proposal to eliminate third-party cookies, arguing it favors Google and harms smaller web publishers. MOW claims that the W3C's stance undermines competition in the web advertising market and violates antitrust obligations, while contending that third-party cookies are not inherently harmful but can be misused by bad actors.

Google has effectively weaponized privacy changes to strengthen its market dominance while undermining competitors. By cutting off access to valuable data under the guise of user privacy, Google ensures its own services remain unscathed, ultimately harming innovation and competition in the digital landscape.