I gotten better battery life under Linux than on Windows on every Thinkpad I've owned in the last 15 years or so.
That's not to say everything is smooth sailing. Audio is a battle I'll still be fighting on my deathbed in ~40 years.
Overcomplicated and hard to configure, the only way it even got measurably usable is because of distro's putting in the sweat here.
However, pipewire is really great. Audio on Linux has been a lot better since pipewire became increasingly the default.
I gotten better battery life under Linux than on Windows on every Thinkpad I've owned in the last 15 years or so.
That's not to say everything is smooth sailing. Audio is a battle I'll still be fighting on my deathbed in ~40 years.