The elephant in the room is that there is no Linux laptop available on the market at any price, with power efficiency even approaching the Apple silicon macs.
The T14 runs at around 9W when the screen is not super bright and you only do light work. I think the Macbook Pro runs at around 6-7W with a similar configuration, which is arguably better. The 16' Macbook also has a much larger battery (almost 100 Wh I think), the Thinkpad has only a 50 Wh battery so it won't last nearly as long on battery. In practice it doesn't bother me much though, not many situations where I have trouble plugging in a charging cable or carrying a powerbank.
Biased perspective, but there are for sure Chromebooks playing in that league. Whether you consider those "Linux laptops" is more of a taste thing. But if you want an all-day battery on a box with a shell and kernel, you can have it.
I’m strongly considering a T14 gen4 and if this turns out to be correct then that will likely tip me over the edge. Hopefully we have some early review in the next few weeks.
The author mentions it in the first paragraph as something he was comparing his laptop to, then inexplicably decides that 8 hours of battery is good enough.
What planet are you from where battery life is an unimportant metric for a portable computer?