How exactly is the massive deployment of mobile artillery supposed to result in less deaths?
In any case, the end of the war would obviously not be the end of the world. Isn't the whole point of the aid for Ukraine that it is supposed to contain Russia and deplete its military and economic capabilities?
So yeah, my point to parent asking why Russia might not be throwing everything at once.
In most cases they're there to get shot at enough while drones watch and tag enemy positions for artillery strikes.
In peer- or near-peer conflicts arty accounts for a high, often monumentally high, number of casualties -- easily 75% or more. The prisoners aren't expected to win, that would require lots of training, trust, gear, and planning; they're expected to draw fire, and the VDV or main-line regulars will clean up the rest.