Cryptocurrency Proof-of-Work still exists, or say, solving the complex crypto codes, or crypto mining.

 There has been a campaign against cryptocurrencies around the world due to the misuse of electricity and environmental pollution from crypto mining. Bitcoin has always been the target of environmentalists because it is proof of work and needs mining to mint new bitcoins.

   To avoid more objectives, PoWs like Ethereum also became PoS. Now the remaining PoWs like Zcash and DOGS are also on the path of change, but not Bitcoin.

    Recently, Binance launched a $500 million project in its mining pool. According to Binance's announcement, it supports mining.

   Binance's support in the name of supporting the mining industry is assumed to be linked to bitcoin mining, as there is currently no possibility of converting bitcoin to PoS.

    If you are going to mine crypto, then mine till you can. There are only a limited number of coins left to mine, and Bitcoin mining will stop at 21M BTC.