Sad that was the reason behind the DOGE mini-pump...

Why doesn't Vitalik care if Litecoin moves to Proof of Stake?

Meanwhile, here is a screenshot of four coin hash rates pre-merge:



Bitcoin's hash rate is hundreds of times higher than DOGE, LTC (which are actually merge-mined) and ETH. Granted, zero energy consumption is better than some... but in comparison the three altcoins are just tiny blips compared to the amount of energy consumed by Bitcoin.