It doesn't seem to be being reported much but even at huge cost Russia has slowly been eeking out terrain gains across the front over the last few days, largely due to Russia seeming to have a bit more artillery ammo coming in (possibly NK supply) at a time where Ukraine is having to conserve what they have:
Unworried by the risk of Ukrainian gunners firing back, the Russians are concentrating their biggest guns for salvos targeting Ukrainian positions in front-line cities.
www.forbes.com
If the artillery situation isn't rectified soon potentially we could see a precipitated collapse along the frontline.