Often, individuals fail to consider the scale of support the Ukrainians are receiving from the West in its totality, not just physical arms but intel from various assets, including satellites.
While the Russian land army has taken a hit, they've been able to replenish their rank and manufacture new equipment to toss on the battlefield. As you said, logistics encompasses raw materials and end-stage manufacturing.
The Russian Air Force and Navy are still intact; thus, there isn't much loss on the Russian side of things.
Now, whether and when this war ends or continues for much longer, we can't deny the Russians are learning while engaged in active combat and rearming through drones and other tech. They have a high-tech supplier in China, which plugged the gap when the Europeans pulled away. Russia will come out differently in this war.
If we look at this conflict, it's a NATO vs Russia grind at the moment; Ukraine is nothing but a tool, or as we say, an extension.