NFTs are minted and managed through smart contracts on blockchains that support NFTs, like Ethereum. These smart contracts are responsible for assigning ownership and managing the transferability of the NFTs. Normally, NFTs are minted by designated parties and they will be minted into a wallet with certain access for NFT platforms outside of the PalWallet system.
Once minted, NFTs can be added to PalWallet like any other supported digital asset- via transfer into the PalWallet from a 3rd party wallet where it was minted. Once in PalWallet, NFTs can be viewed in your portfolio, transferred, or sold like any other digital asset.