Bitcoin switched to industrial ASICs a long time ago, and Ethereum has completely moved away from proof-of-work mining in 2022, see: ethereum.org/en/roadmap/merge/
The Merge was executed on September 15, 2022. This completed Ethereum’s transition to proof-of-stake consensus, officially deprecating proof-of-work and reducing energy consumption by ~99.95%.
GPU mining is pretty much completely dead because after Ethereum switched the yields on everything else tanked, no one mines with GPUs anymore, at least not for any major blockchain. GPUs are mainly being used with AI now
Not really to be honest, the power is in the decentralization, permissionless and opensource nature of the system. You can’t get that out of the traditional system
Of course not all networks are the same and there are always shit ones out there that compromise on those tenets, but if you do your due dilligence, you will see there is value in some of them
PC gamers spend 92% of their time on older games, oh and there are apparently 908 million of us now (www.pcgamer.com) angielski