Anyone must initially earn and satisfy their needs. And only when there is an excess of resources, a person can start thinking about something else. But in all this eco-friendly mining, one thing is not clear why it is needed at all - it can strive and use non-energy-intensive algorithms, and the planet will only get better from it.
If we talk about mining as an end in itself - then yes, you can switch to simpler algorithms. For those who mine from a common electrical network.