Safari refers to it as “Privacy-Preserving Ad Measurement”, and Chrome includes an option as part of its “Privacy Sandbox.” Please have the decency to do a basic google search before being an asshole :)
Literally every browser has this option, and it gives users a choice. If you use an ad blocker, it has this option as well and has had it for several years now.
Nope. Snowflake has been around for a while. I’ve been running my node for at least a year now