Hi, It was helpfully pointed out to me that since this is a very new platform, it might be wise to try the newer backported kernel.
I installed linux-image-amd64/trixie-backports and now I have 6.17.13. This kernel version seems to not usually have trouble resuming from suspend, and it also seems to enter a truer suspended state, as the power and ThinkPad LEDs now pulse when suspended, which wasn't the case with the older kernels.
