I wish the Safari content blocking API allowed cookies to be blocked. I'd block cookies for 99% of sites I visit, allowing them only for the handful of sites to which I login. I'd suggest Safari could even make cookies require getting user permission, the same way location access needs to be granted. "Allow, allow for 24 hours, deny." It could default deny except for sites to which it has a saved password which could…
It's trivial on desktop using an extension [1], but not yet on iOS.