I heard that many people are farming on Jupiter Airdrop from multiple wallets at the same time. Could you please tell me how this is possible? After all, it is forbidden to create more than one account for this purpose.
 

Yes, indeed, to increase earnings in Jupiter Airdrop, many people simply create several wallets and start farming from each of them, thus increasing their chances of winning. And it really can be done, despite the fact that many platforms prohibit one user from using multiple wallets at the same time. And how to do it, read here https://gologin.com/jupiter-airdrop/.