Must be working. Else why is Ukraine trying to move territorial militias into donbass?
Why wouldn't they commit as much manpower as possible? Mortars are short-ranged enough that they're definitely on the front line but they're also manpower intensive in handling ammo, etc.
For instance, check this. Notice anything odd?
They're only using a single gun - not operating a full battery. This is ideal for shoot-and-scoot harassing fire... the kind Ukrainians have a lot of experience with given eight years of low(er) intensity conflict in Donbas. Observe:
Also the Donbas frontline was heavily fortified over those years. Observe this recent video of Russian shelling of such a position:
That 152mm shellfire isn't going to do jack diddly shit to a position like that. The dugout bunkers there will be deep enough, with thick enough roofs, that they can probably repel a direct hit by 203mm, even. It'd take siege weaponry; either a TOS-1 or a 240mm self-propelled mortar to do damage here and those, especially the latter, are currently occupied in Mariupol (and they don't have enough of them to begin with.) That's a perfect position to put a TDF soldier - esp. now that they have a few months of combat experience - since his only job is to crawl out of the trench when the loud noise stops and man his machine gun.
Ukraine is using their conscripts the way conscripts are
intended to be used -
on the defense in a fight for the nation's survival. Morale is handled by the fact they're fighting for their own homes and families and the tasks given to them are on-par with what they're capable of. You don't ask them to be the ones coordinating multiple battery time-on-target barrages; you send them out with a single gun to perform harassing fire missions with instructions to limber up and leg it after they expend their ready rounds. You don't use them on mobile counterattacks, you use them to man well prepared defenses and provide a base-of-fire.
Russia's the one that has to take ground, and they're rapidly running out of trained contract soldiers with which to do it. Ukraine doesn't have to stand on its head to get conscripts - they already have a
trained militia, and as defenders with prepared positions, they have plenty of jobs that manpower is perfectly capable of doing.
Question is - once Russia has finished blowing its wad, its soldiers are exhausted and its initial equipment superiority badly degraded while Ukraine's inferiority is rapidly being made up for with brand new, state of the art western weapons - what do you think happens
then?