Under 0.5 nukes used: 1/1000000000 Over 0.5 nukes used: 1000000000/1
No-one, not even Russia, is going to cross that line. This is a regional conflict with casualties in the tens of thousands. WW3 was a global conflict with casualties in the tens of millions.
It’s clickbait for people who need to see Ukraine winning all the time. Like markets, day-to-day, week-to-week news from a warzone is just noise that’s best off ignored.