What about making that browser render pages written in markdown? Focus on the pure pages and content only and then browser is responsible for rendering that nicely, adding comment sections, allowing highlighting (&sharing of highlights), etc.
It allows the individual browsing the pages to have the experience they want - do you want to see zaps? Do you want to see comments? Do you want to prefetch and inline links? Do you want to see content side by side? Do you want to see links as a gallery? Do you want to run autotranslation? etc...
This would also fit nicely with the nostr protocol and make it cheap to serve markdown "content only" pages (vs 10s of MBs of html and JS to see a stupid ad).
I still think the gemini protocol (e.g. with the Lagrange browser) is really interesting and it would be ideal for Nostr...