oh… ok I understand better now, your main problem is the confusion about the Linux Kernel version and the Librem5 software version
What about this ? :
You can see, that the power draw goes down as the kernel version rises. From version 5.1 to 5.12 of the Librem 5 software, we see about a 10% improvement in heat, 30% in battery draw, and a 90% in load average.