Web3 is things like json-ld and the like and it is tragic that scammers have been able to abuse the term for so long.
But together with other, similar technologies it extends the current with metadata etc web just like web2 extended the existing web with things like ajax interactions, drag and drop and folksonomies ("tags") and other forms of user generated content.
The (IMO) fake crypto peddler "web3" is (again IMO) "revolutionary" unlike web2 and the real web3: it is a complete break from many of the things that made the web great. I'd even hesitate to describe much of it as web at all.
Get your head out of your asses guys. There's nothing inherently bad about blockchain or decentralization.
This is a technical solution to a non-technical problem. If you want to only access esoteric websites, you can do that today. If you want to block ads and tracking, you can do that today. If you want to only visit websites that don't require ad support, you can do that today.
What you need is a way to pay people for content so they don't need to have ads. Can you solve that problem?
1) A truly user focused browser is created, the fabled "user agent". The ad-focused web doesn't support that browser, but websites that care about users do support it. Thus, people who want more than ad-drivel use the niche browser and have access to a web full of weird and non-profit-focused content.
2) Possibly a fork of the underlying technologies. Maybe the browser mentioned uses incompatible technologies or protocols. Maybe this new web is based on something other than HTML and JavaScript.
Probably not. It's a wild idea. It's probably too hard to do better than the existing technologies, and the effort required for such a fork seems ever less likely in this time of dissipating focus and hobbies.