According to artemis, the L2 on-chain data on May 20th is as follows: Under the potential Airdrop expectation, the daily zkSync Era on-chain active users and on-chain transaction numbers are similar to Arbitrum, with 178,900 users contributing to 663,700 transactions.
The number of active users and the number of on-chain transactions of StarkNet reached 122,400 and 214,900 respectively, overall, the number of active users far exceeds Optimism.
However, from the perspective of TVL and Dex volume, zkSync Era and StarkNet are far lower than Arbitrum and Optimism, especially StarkNet, which also confirms that the vast majority of users use addresses within tens of dollars to interact with StarkNet and zkSync on-chain; while Arbitrum and Optimism have on-chain interactions of several hundred dollars or nearly k dollars per capita.
Polygon zkEVM official statement suggests that there may be an expected Airdrop, and the number of active Addresses and transaction times in the past two weeks have both risen by more than 10 times.