Has Sui done airdrop?

Could you please clarify for me, has Sui actually conducted an airdrop? I'm quite interested in learning more about this, as I've heard rumors but haven't found any concrete evidence. Could you possibly elaborate on the details of this airdrop, if it indeed took place? I'm particularly interested in knowing the scale of the airdrop, who were the beneficiaries, and what was the purpose behind it. Additionally, has there been any feedback or analysis on the impact of this airdrop on Sui's ecosystem? Your insights would be greatly appreciated.