It is, indeed. Let's look at the dynamics?

Russian forces never stopped capturing new territories in Donbass since the onset of Avdeevka battle in October 2023. November and December 2024 were Ukraine’s worst months since September 2022, and January 2025 pretty close.

Speaking about much-hyped Kursk incursion area, Russians managed to recapture a good half of it since August. The rest may be traded back during peace talks.

Ukraine is finished demographically and economically, however sad it might sound. The war on attrition, where worse features of conflicts antique, modern, and post-modern combine in an odd manner, is, and was from the beginning, unwinnable for Kiev.