According to Chainalysis data the number of DEX’s doubled between Q1 2019 and Q3 2021, while the amount of CEX’s stayed around the same.

Chainalysis, DEXs, CEXs, DeFi, Binance, Binance.US, Coinbase, IPORead More

You might also be interested in reading Ethereum Foundation roadmap targets zkEVM in mainnet within a year.