Monero is not based on Bitcoin. It is based on the CryptoNote protocol. Bitcoin is a completely transparent system, where people can see exactly how much money is being sent from one user to another. Monero hides this information to protect user privacy in all transactions. It also has a dynamic @block size and dynamic fees, an ASIC-resistant proof of work (@randomx), and a @tailcoin-emission, among several other changes.
coin-emission, among several other changes.