True, but as far as I know most incidents of the USSR coming close to a nuclear strike were accidents or technical glitches. IMO it's incredibly unlikely the USSR would have had actually used nuclear weapons precisely because the military had such an aversion to actually using it.
OTOH incidents like Able Archer demonstrate exactly the kind of carelessness I'm talking about: that anyone was surprised the USSR could have mistaken a realistic, unannounced, off-schedule "simulation" near their borders for the real thing is idiotic. This kind of posturing is extremely dangerous and the US is still doing it today.
Sure, Russia and other "bad actors" are doing similar things, but the US is often going further (except for maybe the recent antics by North Korea -- which everybody expects to do ridiculously crazy things to begin with because they're a hereditary dictatorship, not a democratic republic).
That said, nuclear weapons are not a deterrent. Unless you're a sociopathic caveman, condemning all of humanity to death just because your nation state's integrity is at risk is an unimaginable atrocity. It's the ultimate war crime. Threatening the use of nuclear weapons is holding all of mankind (alive and future) hostage -- it's frankly disgusting.
Not that anyone would be able to or interested in actually having a meaningful war with the US. We're well past the age of rolling into other people's countries with tanks and planting down a flag. A war between Russia and the US would ruin both countries' economies and neither party would come out on top -- even if the US didn't have a massive army (or Russia didn't have a massive territory).
My biggest gripe wrt US vs Russia is actually that Russia and China both have an official No-First-Use policy but the US explicitly reserves the right to a nuclear first strike (not even paying lip service as a sign of good will -- because let's face it: if Russia or China violates their NFU policy against the US it's irrelevant anyway). And while Russia has been a strong proponent of nuclear disarmament since the final years of the USSR, the US has been quite the opposite.
https://en.wikipedia.org/wiki/No_first_use
https://en.wikipedia.org/wiki/Nuclear_disarmament