We're still a bit early in the spring for a major counter-offensive in Ukraine. At least in WW2, this would still have been considered the wet season. I really couldn't find any evidence of major mechanized attacks being conducted at this time of year. The Germans main 1942 summer offensive didn't start until June 28. Their main offensive in 1943 started in July, and the Soviet response came after that. In 1944, the main Soviet offensive kicked off on June 22.
What might be happening now are smaller probing attacks and shaping the battlefield by grabbing some particular pieces of ground. But the Ukrainian main attack likely won't start until mid-May at the earliest.