The part that caught your eye is the only part that’s really wrong.
The Cold War should have ended in 1989. Russia basically stopped fighting the West by then.
The problem for Russia is that the US did not stop fighting it.
Here’s two charts that give some background to why we’re here today.
Russia’s GDP per capita from 1988
Look how it declines in the 90s. What’s that? Wasn’t capitalism and economic liberalisation meant to make countries prosper? This was Russia’s real era of oligarchy. Well-connected men making out like bandits for billions off privatised state industries and companies.
Here’s the life expectancy of Russians
It dropped to levels lower than some undeveloped African nations in the 90s
All presided over by the USA’s most favoured Russian leader ever: Boris Yeltsin.
And now for the familiar tale. Russians was desperate for someone to clean up the mess and make Russia great again.
Just realise that through all this time, the US/NATO didn’t stop fighting the Cold War, but now instead of an incompetent and naive drunkard leading Russia, it had to contend with someone who was intent on Russia asserting itself as a world power again.