A few months ago after updating the UEFI firmware on my Thinkpad T14 Gen 4 (Intel), debian 12 bookworm (stable repo - kernel version 6.1) would become unresponsive (desktop freezing, wifi malfunctioning). After updating the kernel to version 6.11 via bookworm backports, the issues were resolved.

Then there's also Firmware missing for most devices on Thinkpad T14 Gen 4 Intel https://github.com/fwupd/firmware-lenovo/issues/358