As usual, poorly informed article and poorly informed comments, eager to bash on Web3 without knowledge of the full picture and the ongoing developments.
Also, the fact that it's possible to interact with dapps without going through centralized servers it means that it's much harder to get metadata (ex. IP) about who performed a specific action.
It’s possible to interact with dapps without going through a centralized server, for certain types of client hardware. Definitely not for mobile devices.
You can use any Ethereum node, or run your own. MetaMask supports arbitrary RPC servers for this very purpose, so you can use Flashbots, for instance.
This would require more than just a mobile device, however. Perhaps a rooted Android device could self-host an Ethereum node, although your battery life may take a hit.
I think there are other chains and wallets that are designed around mobile use cases, which make it easier than on Ethereum to sync the whole chain, or use technical means to mediate the need to do so.
Example: https://oasisprotocol.org/
Also, the fact that it's possible to interact with dapps without going through centralized servers it means that it's much harder to get metadata (ex. IP) about who performed a specific action.