I agree! currently I run windows as my main OS precisely due to inferior battery life on Linux. I only use Alacritty in minimal Linux VMs when they are not running headless(as pseudo containers, I will be migrating fully to Linux + Docker soon). I normally only work with the VMs while plugged-in and because Alacritty is not available for windows yet, have not used it much on battery therefore I am not in a position to say anything about the battery impact. One thing I have noticed is that it is noticeably slower to start on the same VM as compared to XTerm but the VIM experience was better in Alacritty.