Airdrops should be completely avoided by every newbie. The smell of free money is too difficult to ignore but it is a key emotion to control in order to be a successful bitcoin investor in future.
This is also my advise, I hope newbies listen to it before to fall into scammers tactic. Airdrop has become more than paying fee now, it has gone to the extent even wallet can be compromised, especially altcoin wallets, but even bitcoin if the victim enter his seed phrase or private key into scam site.
Airdrops nowadays aren't really that worth the effort and risk.
I do not know about cryptocurrencies as early, the time I know about cryptocurrencies, airdrop did not bring good return, absolutely waste of time until it wanted to become even worse when I was demanded to pay a fee to b able to receive the airdrop, though I know from the spot that it is a scam.