On a technical perspective, i'd like a modern document browser, not a webapp engine. I can appreciate a cross-platform app runtime (WASI project sounds good), but running random code from every website i visit has only downsides for me. I feel like the useful aspects of the web are declarative (HTML/CSS) that the browser is free to ignore/override to provide better UX, and i'm sad innovation in declarative web seems to have entirely stopped after HTML5 shipped and (and a few others).
Why can't login/logout, drag & drop, background polling for dynamic content updates, and content "tabs" in page (not based on :checked hack) be part of the HTML spec?
https://foobar/newarticles.rss" schema="https://foobar/template.html">
^ my browser would let me opt-in/opt-out of background updates and/or change the frequency... which i can't control with crappy JS applets that just make tons of background activity and break in the most unhelpful ways when wifi/VPN/tor looses connectivity
All in all, declarative formats empower users, whereas imperative formats (ECMAScript) empower content producers and advertisers. I wish we had a sort of web users union doing R&D on such topics and employing people to work on user-respecting tech.