So, do you have a Kernel Panic with blinking LED Num/upper shift/scroll lights on your Keyboard. Or is there another reason why you don’t use MagicSystemHotkeys alias REISUB for a clean restart?
Trying different Kernels is mostly a good option. Today i also had a Plasma Desktop Freeze with Kernel 6.18 related to my Nvidia Driver and Kernel 6.12 at least looks a little bid more stable (besides i have also other problems/Kernel Panic while gaming since this newest stable release update, but that is another story).