Why not create several pools and further decentralize the network? The biggest computational power is in the main pools f2pool, antpool and foundry usa, and why not take advantage of the computational power left in the ethereum video cards and put it in the bitcoin network to further decentralize the network??? I have a solution! create several pools concentrated in certain amounts of miners where each miner will choose their pool and will help the network with their computational power, the pools that come out ahead and mine a block should share the reward for the participants of that pool that was awarded . I think of this more practical solution to further decentralize the network.
Because PPS pools need money, TONS of money, and PPLNS pools are unpopular unless they get a hashrate measured in exahashes per second which creates a catch22. Some of the largest PPS pools are getting funds from "elsewhere" so they are not self-sustained, otherwise they are impossible with those pool fees. But of course it is in their interest to extinguish the others...
GPUs are useless to mine bitcoin since at least a decade.