Perhaps I’m seeing this partially wrong, but if the Russians are having a hard time with the disorganized Ukrainians, imagine what piss poor condition their military must be in.
Putin’s handpicked tyrant ran Ukraine for a decade or so, they dismantled its military and looted it economically until the guy got the boot early this year. Meanwhile Russia has had a huge military build-up.
AND they still had trouble taking over eastern Ukraine.
You are right that this does not bode well for their armed forces if they had a real (conventional) fight. I guess they are lucky that Poland and half of Eastern Europe didn’t get involved.