Cromite browser was a privacy and security oriented Android browser.
Their latest update was in 21th of May: v148.0.7778.168.
Their commit history also suggest that the browser is slowly being sunset.
To put it into context, the current version of chrome on Android is 150.0.7871.63, released on 30th of June.
The rest of GrapheneOS doesn’t influence how web developers design websites, or what fingerprinting and other private information the browser allows sites to steal from users.
It’s not just Manifest V3, either. It’s also the “Web Environment Integrity” API (read: DRM for websites) and “WebMCP” and such. Those are the sorts of monopolistic practices and enshittification you’re supporting and endorsing whenever you use a Chromium-based browser, including Vanadium.