In this article in the beginning it explains that accounts with Sol will be purged. If there is an account that has 0 Sol but has an NFT in the account, will it be purged and if so what happens to the NFT in the account?
1 Answer
TL;DR: No.
Not sure what article you are referring to.
NFTs are stored in Associated Token Accounts, not directly in your wallet account.
Accounts are only purged if they are not 'rent-exempt'. All token accounts are automatically set up in a rent-exempt fashion, which is why there are small chain fees to mint.
(At some point I believe that accounts in general will not be allowed to enter a non-rent-exempt state - you either leave a tiny minimum balance, or completely close the account).
It is not required for the account owning a token account to have any Sol (though it will need to have some to pay for the fraction of a cent of gas should that account want to do anything with that token, unless they invoke a smart contract that pays for the fees itself. I believe Magic Eden might have such a contract for listing, e.g.).