kammerer I've never heard about it. Do you know does it work with Linux?
The e-ink screen does not currently work on Linux.
I consider the fact it runs Windows 11 though to actually be its advantage personally — it is literally the only computer that natively runs Windows 11 that I can comfortably use, which is huge for me as I can finally use a Windows PC that is fully up to date and secure like other modern laptops, with great portablity as well
Even as someone typically sensitive to GPU and graphics driver-related strain, in addition to Windows OS version related strain such as the issues that are typically introduced in Windows 10 1607 and later on most PCs — there is something about the way the e-ink panel is connected in this laptop that prevents ALL of those issues from affecting the panel!! It is a completely pure image to my eyes! Even with full graphics acceleration in all apps and the Iris Xe chip in the laptop
(Since it's a full PC it's even possible to work around some of e-ink's flaws like the grainy effect, by using the Windows High Contrast theme and a screen filter app that forces the screen to only render in pure monochrome, with enough optimizations it has it has now become the best e-ink experience i've used yet)
I do use Linux in my workflow quite a lot though, so in the case of the ThinkBook I'll probably just install a virtual machine which the machine is plenty fast for, I don't see too much of a reason to install Linux natively on this laptop
(My only other usable setups are either not portable at all, or older laptops that are so heavily modded, e.g. disabling gpu acceleration, that features like sleep mode don't work on my customized laptops. On the other hand, ThinkBook Plus 4 finally gives me every advantage of a modern laptop but without the strain lol)