Most new cryptocurrencies are moving away from PoW because a.) it's a massive waste of electricity and b.) it's not actually secure anyway, because we've seen a consolidation of mining power with major ASIC customers who have cheap power costs (notably in China). Ethereum's moving to it in 2020 or 2021, and EOS, Stellar, Tezos, Cardano, etc. are already PoS or derivatives.