This. I never read any discussion about the obvious question: Who guarantees that enabling Privacy-Preserving Ad Measurement will keep all the other tracking a

This. I never read any discussion about the obvious question: Who guarantees that enabling Privacy-Preserving Ad Measurement will keep all the other tracking away from me? No one! I've never read anything at all about the thought process behind this. As you said, with current (EU) law and regulations, it's just one more data point. So it's worth nothing.