Win eventually? Lol. Russia already lost. Their 2 week battle plan to take over Ukraine and dissuade other countries from joining NATO has turned into a two year conflict that has caused multiple neighboring countries to submit NATO applications. The absolute best Russia can do at this point is get a bit of dirt.
Their military has already been downgraded from a near peer to a peer at this point. It used to be The US, China and Russia. Now it’s just The US and China. Their economy is in shambles and they’ve resorted to cooking the books to pretend it’s not. Russia already lost.
Think about this in the future when this war is over and you start claiming that it was a great victory for Daddy Putin because they end up being able to annex a few kilometers of unusable land.