What are the issues I don’t think it’s mentioned enough is the survivability rate among Russian tank crewmembers.
The T-72/T-80 is not a very fun environment when hit. The crew sits on a carousel autoloader, and if the ammunition is hit, the results aren’t great.
In fairness, the autoloader makes the tank much smaller, and removes the need for a human loader.
Unfortunately, as you can see, it’s also extremely vulnerable.
The results are fairly consistent.
Russia is losing a lot of experienced armored vehicle crew members. Even if the vehicles themselves can be replaced, it’s going to take far longer to train up new crews.