Advance = 3.26km2
This lack of Ukrainian forces here means that a single successful FPV or Artillery strike could drastically reduce the ability to hold any particular trench/area (as there may only be 10 to 20 soldiers holding several fields). Similarly, a successful hit on a Russian vehicle could halt all attack attempts for days as they recover/repair/wait for a new one.
Overall, the situation along here is not looking great for Ukraine. Whilst this area is almost entirely empty fields, Russian forces are closing in on the main supply road from Kostyantynivka to Vuhledar, and may also be looking to circumvent the town from the south.