Caching is already a privacy issue with etags. HTTP2 doesn't make that situation worse. Besides the web has become so complex and offers so much for fingerprint

Caching is already a privacy issue with etags. HTTP2 doesn't make that situation worse. Besides the web has become so complex and offers so much for fingerprinting, that this battle has been lost long ago. In order to have actual privacy you'd need to redesign the web from the ground up and consider privacy implications at every step. Even then you might come to the conclusion that it's just not possible to guarantee privacy.