Web 1: The original Internet - a combination of centralization (DNS,IANA) and de-centralization.
Web1 is still around and doing fine.
Web 2: Corporations discover Web1 and want a piece of it, so they give away free services in order to corral users into walled gardens: YouTube, Google, Facebook, Twitter, Reddit, Tiktoc, Instagram, etc.
Web2 runs on top of Web1, which is still there.
Any time anybody gets sick of Web2 they can go back to Web1. They can run their own web sites or Wordpress installations. IRC, Usenet, Etc.
Web 3: Web 2 with ponzi scheme tokens added
Web3 is just a different set of rich people offering inferior copies of web1 and web2 services with crypto tokens added, foolishly thinking that people are going to pay for inferior versions of services they already get for free. It's one of the most absurd things ever.