Solana is a platform that is frequently used to issue NFTs, and people are releasing NFTs on other blockchains as well. There is a significant incentive to mov

Solana is a platform that is frequently used to issue NFTs, and people are releasing NFTs on other blockchains as well. There is a significant incentive to move to these other platforms, because Ethereum is so expensive to use. But yes, most NFTs are issued via Ethereum smart contracts. Ethereum is operating a proof-of-stake network right now in production, and is scheduled to end proof-of-work later this year. My sense is that they will likely complete the transition before the close of 2022, or in 2023 at the latest.