During 2 visits to RU, I saw basic & unit training. It was awful. Familiarization versus qualification on rifles, rudimentary first aid, very few simulations to conserve resources, and...most importantly...horrible leadership by "drill sergeants."
How units are resourced play a big part. One tank unit i visited near Moscow proudly told me they get 1 tank round/crew each year (US units spend hours in simulators & crews fire dozens of real rounds/year).
BTW, Ukraine's army has taken the US model to heart after receiving training from US personnel in both individual and unit training techniques since 2014.
The issue is the Russian army is poorly led & poorly trained. That starts in basic training, and doesn't get better during the RU soldier's time in uniform. Mobilizing 300k "reservists" (after failing with depleted conventional forces, rag-tag militias, recruiting prisoners & using paramilitaries like the Wagner group) will be extremely difficult. And placing "newbies" on a front line that has been mauled, has low morale & who don't want to be portends more RU disaster. Jaw-dropping. A new sign of RU weakness