You’re a fool if you think Putin is going to use nukes against the west.
He values his own skin, his luxurious lifestyle, and his three grand kids too much to use a nuke.
As far as his saber rattling nuclear threats, those are not directed towards NATO or the west. Those are directed towards China because China is drooling over the chance to get their grubby little hands on all that oil, gas, and the various minerals and ores in Siberia.
As it stands right now, Russia has very little in terms of ground forces that can deal with China if/when China decides that they have some BS mystical right over Siberia just like they think they have the rights over all of the South China Sea, etc.
“He values his own skin”
A thin thing to rest the lives of millions of people. First, he is dying (his own skin is providing less value to him everyday) and second everyone claims he is a megalomaniac. If he is deluded into thinking he can win, who knows? His illness can be affecting his brain too.
Hitler would have used the bomb if he had it. Who knows, he might be deluded in failing health to go out in a blaze of glory.