AFAIK, the Kherson region is currently at stalemate as well, the biggest gains for Russia are currently around Izyum area, but these are limited as well. And the Kharkiv counter-offensive is there to weaken the Russian advancements at this specific front. Also, the gains around Kharkiv should not be dismissed so lightly, because especially in the village of  Ruska Lozova, the Russians put hell of a fight, and Ukrainians had significant loses. Also, Ukraine is as of today in possession of 80 o