Web2 vs Web3
Web2 refers to the current version of the internet that most of us are familiar with. An internet controlled by businesses that offer services in exchange for your personal information. Decentralized apps that operate on the blockchain are referred to as Web3 in the context of Ethereum. These are apps that allow anyone to join without their personal information being sold.
Web3 features
Because of Ethereum's inherent decentralization, many Web3 developers have chosen to construct dapps:
Anyone on the network has permission to use the service, so it isn't necessary to ask permission.
No one can prevent you from using the service or deny you access.
The native token, ether, is used to make payments (ETH).
Because Ethereum is turning-complete, you can program almost anything with it.
Because control is decentralized, Web3 tweets would be uncensorable.
Web3 servers can't go down because its backend is Ethereum, a decentralized network of thousands of machines.
Web2 features
Any account or tweet on Twitter can be censored.
Payment services may decide to not allow payments for certain types of work
Gig-economy app servers may go down, affecting worker pay.
WEB3 LIMITATIONS
.Due to the decentralized nature of web3, transactions are slower. A miner must process state changes, such as a payment, and spread them throughout the network.
.Interacting with web3 apps can necessitate additional processes, software, and training. Adoption may be hampered by this.
.Web3 is less accessible to most consumers due to its lack of integration with modern web browsers.
.Because blockchain is expensive, most successful dapps only put a small portion of their code on it.
NOTE: This doesn't mean that all services need to be turned into a dapps. These examples are illustrative of the main differences between web2 and web3 services
Thank you for reading!