I think the main "web3" innovation isn't Blockchain... per se... It's decentralized organization that is largely enabled by cryptos. Rather than pitching to venture capital to start a project, crypto gives an organization the ability to instantly "go public"
I read something once about a hype phase... And crypto projects are definitely in a hype phase. Tons of scams and worthless projects. I think in time it'll settle down. But make no mistake, VC days are numbered.
Opera... It's a small browser, but I'm sure other browsers will follow suit. You'll be able to pay for services that might be small teams.. Multiple companies, etc.