voidlinux: gave me much better battery life - I assume because it starts as a minimal system and one adds only the essentials to do the job - compared to the soup-to-nuts distros that pile everything in so that newbies are acccomodated. Of course, the voidlinux approach needs more linux skills - but it's not that hard and the doco is great.
Also, I love the back to basics runit init system and runsv service runner (I'm old so I like that stuff) and the ultra fast xbps packaging system.