> Instead of deprecating third-party cookies, we would introduce a new experience in Chrome that lets people make an informed choice that applies across their web browsing, and they’d be able to adjust that choice at any time. We're discussing this new path with regulators, and will engage with the industry as we roll this out... We'll continue to make the Privacy Sandbox APIs available and invest in them to further improve privacy and utility.
Discussion here: https://news.ycombinator.com/item?id=41038586
There are numerous ways that the Topics API could leak sensitive information (say, for instance, increased values for a set of topics statistically related to life events with legal/health consequences) - I'm glad that opposition is being highlighted.
Apple's opposition comments are also worth reviewing: https://github.com/WebKit/standards-positions/issues/111