You can still win wars with subpar equipment if you have the right tactics and are highly motivated.
Look no further than the Taliban and the North Vietnamese army.
One reason you, Stone, and Moon mistakenly assumed the Russian military was a juggernaut who would roll though Kyiv in a matter of days is you did not consider other intangible factors.
The Ukrainians are highly motivated to defend their freedom and sovereignty, and have been receiving NATO training for eight years.
Russian Federation contract soldiers are drawn heavily from the autonomous republics, Siberia, the Caucuses, and I can't see why Buryats, Chechens, and Tatars would be eager to die for some theoretical concept of East Slavic Russian orthodox nationalism.