According to British Intelligence up to 1/3 of Russian Troops and Resources have been eliminated as a result of the war in Ukraine.
Keep in mind that it takes about 30% losses to render a fighting force ”combat ineffective” so basically the Russian Army is out of commission in Ukraine.
This is evidenced by the virtual standstill Russian troops are at on nearly all fronts. 2 days ago an entire battalion was lost trying to cross a river in Luhansk Region.
Russian military analysts are beginning to admit the superiority of the Ukrainian force and are beginning to set the stage for defeat.