If this release of a controversial Chrome tracking technology despite industry warnings sounds familiar, that’s because we saw the same with FLoC earlier this year: Google was warned that its attempt to anonymize users while still serving the needs of advertisers was a surveillance disaster in the making.
There are privacy implications that a user cannot be expected to realize.”
Vivaldi agrees, telling me: “We are not happy with the privacy implications of this API (since it can be abused for behavioral tracking), or the fact that it can be abused to know about when you might not notice if something is using your CPU.