This is already going into the history books as the "Artillery War."
Which is why in this supposed second stage of the Russian offensive the US primarily and now France are sending artillery and nearly 200,000 rounds of ammo.
There's some cause for optimism in Ukraine and throughout the West that are being led in armaments and munition supplies by 15 NATO member states. Russia is running out of troops, as indicated by its callup of 100,000 new draftees. No doubt, the new draftees will be thrown in poorly trained, equipped, prepared. They may not accept the whole of it once thrown into combat.
Russia is calling up cadets from military academies and military secondary schools who are in officer training programs. Utilizing cadets in war is nothing new or unusual, however, it is a definitive sign of desperation. Further, cadets called into combat action are typically used on defense, almost only. These cadet officer candidates will be ordered to participate in leading the offensive.
Against the Ukrainian fighters and their new volume of offensive weapons -- artillery, anti tank weapons, drones -- the new draftees and cadets being called up and ordered to buttress the weak offense leave reason for the good guys to believe the current Russian offensive has already become based in desperation. Further, it's an old truism desperation works more effectively on defense, not offense.
Indeed the Russian idiot generals should have bypassed the steel plant where Ukrainian Marines are holed up with sheltered civilians instead of stopping their already hesitant advance to hit the plant lightly and and keep flailing for 'em to surrender. Russian generals need to go around the sucker and leave a minimum force to wait out the defending troops and civilians inside to wither down. Continue the offensive advance while forgetting about the steel facility they want to seize largely intact.