The laptop I got last year also "replaced" one that was 11 years old, from the awful interval where they had internal batteries and limited ports but custom chargers and almost useless batteries.

Replaced in quotes because for the covid years I used a desktop and didn't have to be able to function outside often enough to bother with a laptop.

Considering that 5 years ago is 2019, I figure that efficiency gains are probably also not as dramatic as I'm imagining.