Night City is a place of undercurrents, hidden behind the frequent and intense gunfights that are part of everyday life.
But in reality, since the arrival of Arasaka's aircraft carrier ended the Unified War seven years ago and military technology decided to cease fire, there haven't been any major incidents for a long time.
Similarly, outside of Night City, corporations have barely maintained high-intensity conflicts—there's been no substantial warfare.
So, upon analysis, the Cyberpunk World could be said to have been "peaceful" over the years.
And in the Marvel World, at least in the majority of the main countries' cities, life can be called peaceful—
However, on the flip side, wars are continual on a global scale, and essentially all have major organizations or nations involved.
Indeed, just a few short years after the end of World War II, wars broke out once more...
"...Peace has always been a lie if you want peace, you must wage war."