Yes the biggest problem for Russia is not enough PGMs.Russians have great experience from Syria in precision ground strikes against stationary targets; however they are limited offensively to bombing predominantly stationary targets due to a lack of sophisticated guided munitions and targeting pods which negates CAS to dumb fire rockets and helicopters; limiting RuAF effectiveness in any ground conflict.
They don't have enough of a stockpile or production capacity to use them freely as they want.
It'll be a real problem for any military engaged in high intensity conflict. Even the United States will run out in a month.
Throwing a few a day at insurgents is one thing, using hundreds a day, you'll run out quickly and switch to unguided munitions.