No they haven't, any more than the US was in a shooting war with the Russians when they armed the Taliban and the Vietcong.
You might want check the armaments, targeting and intelligence capabilities deployed and the tens of thousands of Russians killed by these US actions. How many hundreds of billions did the Russians invest against the US in Afghanistan? How many tens of thousands of American troops were killed in Afghanistan by Russian resources. You might want to acquaint yourself with a globe. The perhaps hundreds of American casualties attributable to Russian meddling in Afghanistan were 8000 miles from the U.S., the tens of thousands of Russian deaths caused by U.S. weapons are a days tank ride from Moscow. Also, when did Putin come to Cuba to preach DC regime change over Afghanistan? I do wish I could bury my head in the sand the way you do and not watch this escalate into WWIII. Ignorance is indeed bliss.