The founder of Cardano, Charles Hoskinson, stated that the Hydra protocol is not only active on Cardano's mainstream network, but it's also rapidly evolving. He highlighted the innovative transaction processing methods, including tiered pricing and the Babel commission system.
Hoskinson's comment was in response to a user, going by the pseudonym 0xONLY.arf, who expressed the opinion that Cardano is merely following in Ethereum's footsteps, albeit a few years behind.