My first ThinkPad had terrible battery life. It was a X1 Extreme or something like that, pretty high end but the battery was useless. Even brand new it wouldn't last an hour off leash. Also couldn't use usb-c charging from the monitors at the office, had to be plugged in.
Also the Fn key is where the Ctrl key should be, which is endlessly annoying as a user of different laptop brands.
IBM invented the Fn key so if anyone has their Fn key where the Ctrl key should be, it is the copycats.
> The Fn key first debuted on the monochrome display ThinkPad 300 in October of 1992. Yes there was a ThinkPad with a monochrome display. The Fn key circa 1992 was placed exactly as it is today. Interestingly enough, Apple uses the same positions for their Fn and Ctrl keys as ThinkPad. Every other notebook personal computer manufacturer that I know of has the Fn and Ctrl key positions swapped. Some would say backwards.
Also the Fn key is where the Ctrl key should be, which is endlessly annoying as a user of different laptop brands.