Using the back button is not enough.
Even using your method, the website will transmit information about me to several ad networks without my consent about retargeting, about which sites I'm visiting, which sites I visited before (via referrer header) and will fingerprint me. Even with their (mostly non-compliant) GDPR cookie banners, information is still transmitted.
As far as I'm concerned, no website owner has ever given me a choice of "just using the back button".
Only ad-blocking is enough to stop this from happening.