There is a good chance of Matcha exchange (DEX) airdrop.

Be prepared.

1. Have some $ETH on Arbitrum and swap it to and fro to $USDC

2. Do 2 swaps and then use it in next month or next week

3. Possible criteria now a days is number of times used, No of different months used, No of trades, volume, Earliest user

So be prepared accordingly and #DYOR before using #NFA