That post is helpful, but adding a global header across a site is typically very little effort. And there's nothing in there that says it's harmful.
And I'm unconvinced on this part:
"If your website does not include JS that calls document.interestCohort(), it will not leverage Google’s FLoC. Explicitly opting out will not change this."
I try to know everything running on my site. But especially with things like a deep npm dependency chain, I know not everyone knows everything that's running on their site. Or maybe chrome will interpret an image that happens to be an IAB size as an ad. I recall a certain storage related company recently running Google Analytics on an admin page, something the tech team didn't intend to happen. But shit happens.
I think it's worth putting up, both for whatever limited help it provides, as well as a visible vote against FloC.
