I would like to know more about what is Crypto Airdrop? Where can I read more about it? Or maybe someone on the forum can explain to me in simple words what it is and how it works?

In simple words, Crypto Airdrop is a promotional tool that allows projects to make themselves known to a wide range of users and users to earn money by supporting the project with their activity at an early stage, you can learn more about this tool in this article https://gologin.com/blog/what-is-crypto-airdrop.