@Relic
Andrew Perpetua, Oryx and Warspotting all track both Russian and Ukrainian losses. You can also find a picture for every Russian vehicle on the Oryx website. You can also find thousands of Russian losses on the Reddit Combat Footage page. Covert Cabal also runs a YouTube channel in which he and his team use satelite imagery to track Russian vehicles and artillery removed from storage, used to replace Russian losses. It's fascinating how low Russia is on easily restored vehicles.
There are very good open source resources tracking the demise of the Soviet arsenal that was left to Russia.
www.oryxspioenkop.com
Visually confirmed Russian losses in Russian war in Ukraine
ukr.warspotting.net
The red cross source I posted here showing Russians willing to deliver 15 times more Ukrainian bodies for their own says it all. Surely the Ukrainians won't have any problems delivering the same amount of Russian bodies back with their own claims right?