Lets see - observations form 2 years of Russia/Ukraine war:
1 - Putin/Russia still fight like WW2: bomb/shell cities and towns to rubble then call it “liberated”.
2- Target civilians and infrastructure, even ignoring military targets for the terror effect.
3- Putin sent Neo-Nazis to clean up “Ukrainian Nazis”
4- Russia throws nothing away. Unlike the West (and especially the USA) - Russia doesn’t rush as much to design and build brand new weapons - and when they do, they mothball their old for future use. So - while Russia has put a few of their limited supply of “latest and greatest” weapons to use - they have also been using artillery shells that are literally from late WW2 and Korea vintage, tanks from 1950. While they may lack the technology, a thousand functional 50 year old tanks is still a formidable force.
5- Putin/Russia don’t mind tossing bodies into the fire. The often disputed “rushed, ill-trained, and poorly-armed conscripts” is actually more true than anyone on any side likes to think about. When you send hundreds, even thousands EVERY DAY to the exact same path to the same city where Ukrainian artillery has it zeroed in - and wave after wave gets obliterated - in hopes that you can squeeze through a few and/or exhaust the Ukrainian ammunition supplies (which actually was effective)... losing thousands of human pawns in the process...
It just goes to show the vast difference between Russian/Putin war fighting strategy and the supposedly more sanitized and detached Western theory of war. And it seems Russia has caught on to the drone battle concept as well- employing them in insane numbers. Ukraine is probably better at it - but doesn’t have the numbers that Russia does.
Russia doesn’t have the number of drones Russia has. Russia has the number of drones Iran has that they can obtain. It is reported Ukraine is manufacturing drones and developing new kinds to use for warfare.