Hardware support is still an issue. I recently tried to use Linux on my laptop, it didn’t work out primarily because not all of the hardware was supported. I thought it was when I bought the laptop but the documentation of what actually works and doesn’t work isn’t clear or accurate so I ended up with a laptop that can technically run Linux but has various hardware in it will not function and likely never will.
Web 3.0 was actually the Semantic Web originally, the cryptobros are bad at counting.